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Scientific Impact as of: April 8th, 2024


222. R. Amin, J. Pandey, K. Beyer and V. Petkov “Two-step charge density wave transition and hidden transient phase in 1T-TiSe2"   Phys Rev.B 109, 144106 (2024). Paper

221. Z. Kong, Zhi-Peng Wu, Y. Maswadeh, G. Yu, Jorge A. Vargas, D. Caracciolo, V. Petkov, S. Zang, Li Tao, S. Wang, and C.-J. Zhong “Self-Sustainable Lattice Strains of Morphology-Tuned Nanowires in Electrocatalysis”   ACS Catalysis 14, 4709 (2024). Paper


220. V. Petkov , R. Baumbach, M. Jakhar, V. Barone, A. Zafar, L. Gallington, S. Shastri, and B. Aoun "Local lattice distortions and electronic orders in strongly correlated systems by resonant total x-ray scattering: A case study of APt2X2 intermetallics (A = U, Ce, or La and X = Si or Ge)""   Phys. Rev. B 108, 224110 (2023). Paper

219. V. Petkov , R. Amin, M. Jakhar, V. Barone, AM Milinda Abeykoon, M. Sretenovic and X. Ke "Charge density wave order, local lattice distortions, and topological electronic states in NbTe4"   Phys. Rev. B 108, 174112 (2023). Paper

218. S. Chanakian, W. Peng, V. Meschke, A. K. M. A. Shawon, J. Adamczyk, V. Petkov, E. Toberer, and A. Zevalknink "Investigating the role of vacancies on the thermoelectric properties of EuCuSb-Eu2ZnSb2 alloys"  Angewand. Chem. Int. Ed., e202301176 (2023). Paper

217. V. Petkov, R. Baumbach, AM Milinda Abeykoon and J. A. Mydosh "3D charge density wave in the dual fermion system UPt2Si2"  Phys. Rev. B 107, 245101 (2023). Paper

216. V. Petkov, A. Zafar, P. Kenesei and S. Shastri "Chemical compression and ferroic orders in La substituted BiFeO3" Phys. Rev. Mat. 7, 054404 (2023). Paper

215. Valeri Petkov, Adeel Zafar, Durga R Tadisetti1, and M. AM Abeykoon "Lattice instability and magnetic phase transitions in strongly correlated MnAs" J. Phys.: Condens Matter 35, 315401 (2023). Paper

214. Jorge R. Galeano-Cabral, Eliana Karr, Benny Schundelmier, Olatunde Oladehin, Eun S. Choi,Theo Siegrist, Juan Ordonez, Sarvjit Shastri, Valeri Petkov, Ryan E. Baumbach,and Kaya Wei "Enhanced thermoelectric properties of heavy-fermion compounds YbxCeySmzIr2Zn20 (x + y + z = 1)" Phys. Rev. Mat. 7, 025406 (2023). Paper

213. Ezgi Yildirim, Raj Kumar Ramamoorthy, Rohan Parmar, Pierre Roblin, Jorge A. Vargas, Valeri Petkov, Ana Diaz, Stefano Checchia, Isaac Rodriguez Ruiz, Sébastien Teychené, Lise-Marie Lacroix, and Guillaume Viau "Simple Synthesis of Monodisperse Ultrasmall Au Icosahedral Nanoparticles" J. Phys. Chem. C 127, 3047 (2023). Paper


212. V. Petkov, T. Durga Rao, A. Zafar, A. M. Milinda Abeykoon, E. Fletcher, J. Peng, Z. Q. Mao and X. Ke ”Lattice distortions and the metal–insulator transition in pure and Ti-substituted Ca3Ru2O7” J. Phys.: Condens. Matter 51, 015402 (2023). Paper

211. V. Petkov, T. D. Rao, AM Milinda Abeykoon, Jorge R. Galeano-Cabral, and K. Wei “Spin-lattice coupling in magnetocaloric Gd5(Ge,Si)4 alloys by in-situ x-ray pair distribution analysis in magnetic field" Phys. Rev. Materials 6, 104407 (2022).Paper

210. V. Petkov, J. E. Peralta, B. Aoun and Y. Ren “Atomic structure and Mott nature of the insulating charge density wave phase of 1T-TaS2” J. Phys.: Condens. Matter 34, 345401 (2022).Paper

209. L. Ma, J. Vatamanu, N. T. Hahn, T. P. Pollard , O. Borodina, V. Petkov, M. A. Schroeder, Y. Ren, M. S. Ding, C. Luo, J. L. Allen , C. Wang, and K. Xua “Highly reversible Zn metal anode enabled by sustainable hydroxyl chemistry” PNAS 119, e2121138119 (2022).Paper

208. H. Kareem, Y. Maswadeh, Zhi-Peng Wu, A. C. Leff, Han-Wen Cheng, S. Shan, S. Wang, R. Robinson, D. Caracciolo, A. Langrock, D. M. Mackie, D. T. Tran, V. Petkov, and C.-J. Zhong “Lattice Strain and Surface Activity of Ternary Nanoalloys under the Propane Oxidation Condition” ACS Appl. Mat. & Interfaces 14, 11435 (2022).Paper

207. V. Petkov and Y. Ren “Critical cation–anion radius ratio and two-dimensional antiferromagnetism in van der Waals TMPS3(TM = Mn, Fe, Ni)”J. Phys.: Condens. Matter 34,175404 (2022).Paper


206. V. Petkov and S. Shastri "Lattice symmetry breaking transition and critical size limit for ferroic orders in nanophase BiFeO3" Phys. Rev. B 104, 054121(2021).Paper

205. E. Lee, K. A. Kuttiyiel, K.-H. Kim, J. Jang, H. J. Lee, J. M. Lee, M. H. Seo, T.-H. Yang, S.-D. Yim, J. A. Vargas, V. Petkov, K. Sasaki, R. R. Adzic and G.-G. Park "High Pressure Nitrogen-Infused Ultrastable Fuel Cell Catalyst for Oxygen Reduction Reaction" ACS Catal. 11, 5525 (2021).Paper

204. V. Petkov and V. Buscaglia "Rhombohedral distortion and percolation phenomena in B-site substituted perovskite ferroelectrics with enhanced piezoelectric response " Phys. Rev. Materials 5, 044410 (2021).Paper

203. V. Petkov and Y. Ren "Local structure memory effects in the polar and nonpolar phases of MoTe2" Phys. Rev. B. 103, 094101 (2021).Paper

202. Z.-P. Wu, D. T. Caracciolo, Y. Maswadeh, J. Wen, Zh. Kong, Sh. Shan, J. A. Vargas, Sh. Yan, E. Hopkins, K. Park, A. Sharma, Y. Ren, V. Petkov, L. Wang & Chuan-Jian Zhong "Alloying–realloying enabled high durability for Pt–Pd-3d-transition metal nanoparticle fuel cell catalysts" Nature Commun. 12, 8597 (2021).Paper


201. G. King, M. Celikin, M. Alberto Gomez, L. Becze, V. Petkov and G. Della Ventura “Revealing the structures and relationships of Ca(II)–Fe(III)–AsO4 minerals: arseniosiderite and yukonite" Envin. Sci.: Nano (Journal Cover story) 7, 3735 (2020).Paper

200. V. Petkov J. Yang, S. Shastri, and Y. Ren "Hierarchy among the crystal lattice, charge density wave, and superconducting orders in transition metal dichalcogenides" Phys. Rev. B 102, 134119 (2020).Paper

199. S. Shan, J. Li, Y. Maswadeh, C. O’Brien3,6, H. Kareem, D. T. Tran, I. C. Lee, Z.-P. Wu, S. Wang, S. Yan, H. Cronk, D. Mott, L. Yang, J. Luo, V. Petkov & Ch.-J. Zhong “ “Surface oxygenation of multicomponent nanoparticles toward active and stable oxidation catalysts” Nature Commun. 11, 4201 (2020).Paper

198. R. K. Ramamoorthy, E. Yildirim, E. Barba, P. Roblin, J. A. Vargas, L.-M. Lacroix, I. Rodriguez-Ruiz, P. Decorse, V. Petkov, S. Teychené and G. Viau “The role of pre-nucleation clusters in the crystallization of gold nanoparticles” Nanoscale 12, (2020).Paper

197. V. Petkov, K. Chapagain , J. Yang, S. Shastri, and Y. Ren “Exotic bonding interactions and coexistence of chemically distinct periodic lattice distortions in the charge density wave compound TaTe2" Phys. Rev. B 102, 024111 (2020).Paper

196. Ch. Kokkinos, A. Economou, A. Pournara, M. Manos, I. Spanopoulos, M. Kanatzidis, Th. Tziotzi, V. Petkov, A. Margariti, P. Oikonomopoulos, G. S. Papaefstathiou “3D-printed lab-in-a-syringe voltammetric cell based on a working electrode modifed with a highly effcient Ca-MOF sorbent for the determination of Hg (II)” Sensors and Actuators B: Chemical 321, 128508 (2020).Paper

195. V. Petkov, K. Chapagain, S. Shastri and Y. Ren “Genesis of the periodic lattice distortions in the charge density wave state of 2H-TaSe2" Phys. Rev. B 101, 121114 (Rapids) (2020).Paper

194. S. Chanakian, D. Uhl, D. Neff, F. Drymiotis, J. Park, V. Petkov, A. Zevalkink and S. Bux “Exceptionally high electronic mobility in defect-rich EuZnSb2-xBix alloys” J. Chem. Mat. A 8, 6004 (2020).Paper

193. M. A. Matin, J. Lee, G. W. Kim, Hyun-Uk Park, B. Jun Cha, S. Shastri, G. Kim, Y.-Dok Kim, Young-Uk Kwon, V. Petkov “Morphing Mncore@Ptshell nanoparticles: Effects of core structure on the ORR performance of Pt shell” Appl. Cat. B.: Environmental 267, (2020) 118727.Paper


192. Zh. Kong, Y. Maswadeh, J. A. Vargas, Sh. Shan, Zhi-Peng Wu, H. Kareem, A. C. Leff, Dat T. Tran, F. Chang, Sh. Yan, S. Nam, X. Zhao, J. M. Lee, Jin Luo, S. Shastri, Gang Yu, V. Petkov and Chuan-Jian Zhong “Origin of High Activity and Durability of Twisty Nanowire Alloy Catalysts under Oxygen Reduction and Fuel Cell Operating Conditions" J. Am. Chem. Soc. 142 (2020) 1287.Paper

191. V. Petkov, Jong-Woo Kim, S. Shastri, Sh. Gupta and Sh. Priya “Geometrical frustration and piezoelectric response in oxide ferroics” Phys. Rev. Mat. 4, 014405 (2020) " Phys. Rev. Mat.4 (2020) 014405 (Editors' Suggestion).Paper

190. A. D. Pournara, A. Margariti, G. D. Tarlas, A. Kourtelaris, V. Petkov, Ch. Kokkinos, A. Economou, G. S. Papaefstathiou and M. J. Manos "A Ca2+ MOF combining highly efficient sorption and capability for voltammetric determination of heavy metal ions in aqueous media" " J. Mat. Chem. A 7 (2019) 15432.Paper

189. Valeri Petkov, Yazan Maswadeh,Jorge A. Vargas, Shiyao Shan, Haval Kareem, Zhi-Peng Wu, Jin Luo, Chuan-Jian Zhong, Sarvjit Shastric and Peter Kenesei "Deviations from Vegard’s law and evolution of the electrocatalytic activity and stability of Pt-based nanoalloys inside fuel cells by in operando X-ray spectroscopy and total scattering" Nanoscale 11 (2019) 5512.Paper


188. Zhi-Peng Wu, Shiyao Shan, Zhi-Hui Xie, Ning Kang, Keonwoo Park, Emma Hopkins, Shan Yan, Anju Sharma, Jin Luo, Jie Wang, Valeri Petkov, Lichang Wang, and Chuan-Jian Zhong "Revealing the Role of Phase Structures of Bimetallic Nanocatalysts in the Oxygen Reduction Reaction" ACS Catal. 8 (2018) 1132.Paper

187. H. N. Nong, T. Reier1, H.-S.Oh, M. Gliech1, P. Paciok, T. H. T. Vu, D. Teschner, M. Heggen, V. Petkov, R. Schlög, T. Jones and P.Strasser "A unique oxygen ligand environment facilitates water oxidation in hole-doped IrNiOx core–shell electrocatalysts" Nat. Catal. 1 (2018) 841.Paper

186. J. A. Vargas, V. Petkov, El Said A. Nouh, R. K. Ramamoorthy, L.-M. Lacroix, R. Poteau, G. Viau, P. Lecante, and R. Arenal “Ultrathin Au Nanowires with the polytetrahedral structure of manganese” ACS Nano 12 (2018) 9521.Paper

185. Valeri Petkov, Sarvjit Shastri, Jong-Woo Kim, Shiyao Shan, Jin Luo, Jinfang Wu and Chuan-Jian Zhong “Application of differential resonant high-energy X-ray diffraction to three-dimensional structure studies of nanosized materials: A case study of Pt–Pd nanoalloy catalysts” Acta Cryst. A 74 (2018) 553.Paper

184. Arnaud Demortie`re, Donovan N. Leonard, Valeri Petkov, Karena Chapman, Soma Chattopadhyay, Chunxing She, David A. Cullen, Tomohiro Shibata, Matthew Pelton, and Elena V. Shevchenko “Strain-Driven Stacking Faults in CdSe/CdS Core/Shell Nanorods” J. Phys. Chem. Lett. 9 (2018) 1900.Paper

183. Valeri Petkov, Yazan Maswadeh, Yinguang Zhao, Aolin Lu, Hannah Cronk, Fangfang Chang, Shiyao Shan, Haval Kareem, Jin Luo, Chuan-Jian Zhong, Sarvjit Shastri and Peter Kenesei “Nanoalloy catalysts inside fuel cells: An atomic-level perspective on the functionality by combined in operando -ray spectroscopy and total scattering” Nano Energy 49 (2018) 209.Paper

182. Valeri Petkov, Yazan Maswadeh, Aolin Lu, Shiyao Shan, Haval Kareem, Yinguang Zhao, Jin Luo, Chuan-Jian Zhong, Kevin Beyer and Karena Chapman "Evolution of Active Sites in Pt-Based Nanoalloy Catalysts for the Oxidation of Carbonaceous Species by Combined in Situ Infrared Spectroscopy and Total X-ray Scattering" ACS Applied Materials & Interfaces 10 (2018) 10870. Paper

181. Haval Kareem, Shiyao Shan, Fang Lin, Jing Li, Zhipeng Wu, Binay Prasai, Casey P. O’Brien, Ivan C. Lee, Dat T. Tran, Lefu Yang, Derrick Mott, Jin Luo, Valeri Petkov and Chuan-Jian Zhong "Evolution of surface catalytic sites on thermochemically-tuned gold–palladium nanoalloys" Nanoscale 10 (2018) 3849.Paper

180. Aolin Lu, Zhi-Peng Wu, Binghui Chen, Dong-Liang Peng, Shan Yan, Shiyao Shan, Zakiya Skeete, Fangfang Chang, Yuanzhi Chen, Hongfei Zheng, Deqian Zeng, Lefu Yang, Anju Sharma, Jin Luo, Lichang Wang, Valeri Petkov and Chuan-Jian Zhong "From a Au-rich core/PtNi-rich shell to a Ni-rich core/PtAu-rich shell: an effective thermochemical pathway to nanoengineering catalysts for fuel cells" J. Mat. Chem. A 6 (2018) 5143.Paper


179. V. Petkov, Binay Prasai, Sarvjit Shastri, Hyun-Uk Park, Young-Uk Kwon and Vassil Skumryev "Ensemble averaged structure–function relationship for nanocrystals: effective superparamagnetic Fe clusters with catalytically active Pt skin" Nanoscale 9 (2017) 15505.Paper

178. Y. Zhao, Y. Maswadeh, Sh. Shan, H. Cronk, Z. Skeete, B. Prasai, J. Luo, V. Petkov and Ch.-J. Zhong “Composition-Structure-Activity Correlation of Platinum- Ruthenium Nanoalloy Catalysts for Ethanol Oxidation Reaction" J. Phys. Chem. C. 121 (2017) 17077.Paper

177. J. Wu, Sh. Shan, H. Cronk, F. Chang, H. Kareem, Y. Zhao, Luo, V. Petkov and C.-J. Zhong “Understanding Composition-Dependent Synergy of PtPd Alloy Nanoparticles in Electrocatalytic Oxygen Reduction Reaction” J. Phys. Chem. C. 121 (2017) 14128.Paper

176. S.-D. Han, S. Kim, D. Li, V. Petkov, H. D. Yoo, P. J. Phillips, H. Wang, J. Jin Kim, K. L. More, B. Key, R. F. Klie, J. Cabana, V. R. Stamenkovic, T. T. Fister, N. M. Markovic, A. K. Burrell, S. Tepavcevic and John T. Vaughey “Mechanism of Zn Insertion into Nanostructured d-MnO2:A Nonaqueous Rechargeable Zn Metal Battery” Chem. Mat. 29 (2017) 4874.Paper

175. F. Chang, G. Yu, Sh. Shan, Z. Skeete, J. Wu, J. Luo, Y. Ren, V. Petkov and Ch.-J. Zhong "Platinum–nickel nanowire catalysts with composition-tunable alloying and faceting for the oxygen reduction reaction” J. Mat. Chem. A 5 (2017) 1255.Paper

174. L. Zhu, S. Shan, V. Petkov, W. Hu, A. Kroner, J. Zheng, C. Yu, N. Zhang, Y.Li, R. Luque, C.-J. Zhong, H. Ye, Z. Yang and B. H. Chen "Ruthenium–nickel–nickel hydroxide nanoparticles for room temperature catalytic hydrogenation” J. Mat. Chem. A 5 (2017) 786.Paper

173. V. Petkov, B. Prasai, S. Shastri, J.-W. Kim, S. Shan, H.R. Kareem, J. Luo and Ch.-J. Zhong “Surface Atomic Structure and Functionality of Metallic Nanoparticles: A Case Study of Au-Pd Nanoalloy Catalysts” J. Phys. Chem. C 121 (2017) 785.Paper

172. Y. Maswadeh, S. Shan, B. Prasai, Y. Zhao, Zhi-Hui Xie, Z. Wu, J. Luo, Y. Ren, Chuan-Jian Zhong and V. Petkov “Charting the relationship between phase type surface area-interactions between the constituent atoms and oxygen reduction activity of Pd–Cu nanocatalysts inside fuel cells by in operando high-energy X-ray diffraction” J. Mat. Chem. A 5 (2017) 735.Paper


171. Chang, Sh. Shan, V. Petkov, Z. Skeete, A. Lu, J. Ravid, J. Wu, J. Luo, G. Yu, Y. Ren and Ch.-Jian Zhong “Composition Tunability and (111)-Dominant Facets of Ultrathin Platinum-Gold Alloy Nanowires toward Enhanced Electrocatalysis” J. Am. Chem. Soc. 138 (2016) 12166.Paper

170. N. Kang, M. Ng, Sh. Shan, J. Wu, W. Zhao, J. Yin, W. Fang, J. Luo, V. Petkov, Ch. J. Zhong “Synergistic catalytic properties of bifunctional nanoalloy catalysts in rechargeable lithium-oxygen battery” J. Power Sources 326 (2016) 60.Paper

169. V. Petkov, B. Prasai, S. Shan, Y. Ren, J. Wu, H. Cronk, J. Luo and Ch.-J. Zhong “Structural dynamics and activity of nanocatalysts inside fuel cells by in operando atomic pair distribution studies” Nanoscale 8 (2016) 10749.Paper

168. Gui-Liang Xu, T. Ma, Ch.-Jun Sun, Ch. Luo, Lei Cheng, Y. Ren, S. M. Heald, Ch. Wang, L. Curtiss, J. Wen, D. J. Miller, T. Li, X. Zuo, V. Petkov, Z. Chen and K. Amin “Insight into the Capacity Fading Mechanism of amorphous Se2S5 Confined in Micro/Mesoporous Carbon Matrix in Ether-Based Electrolytes” NanoLett. 16 (2016) 2663.Paper

167. N. M. Bedford, Z. E. Hughes, Zh. Tang, Y. Li, B. D. Briggs, Y. Ren, M. T. Swihart, V. Petkov, R. R. Naik, M. R. Knecht and T. R. Walsh “Sequence-Dependent Structure/Function Relationships of Catalytic Peptide-Enabled Gold Nanoparticles Generated under Ambient Synthetic Conditions” J. Am. Chem. Soc. 138 (2016) 548.Paper


166. J.Wu, Sh. Shan, J. Luo, Ph. Joseph, V. Petkov and C.J. Zhong  “PdCu Nanoalloy Electrocatalysts in Oxygen Reduction Reaction: Role of Composition and Phase State in Catalytic Synergy” ACS Applied Materials & Interfaces 7 (2015) 25906.Paper

165. Sh. Shan, V. Petkov, B. Prasai, J. Wu, P. Joseph, Z. S. Eunjoo Kim, D. Mott, O. Malis, J. Luo and C.-J. Zhong “Catalytic activity of bimetallic catalysts highly sensitive to the atomic composition and phase structure at the nanoscale” Nanoscale 7 (2015) 18936.Paper

164. Valeri Petkov, Binay Prasai, Sarvjit Shastri and Tsan-Yao Chen “3D Atomic Arrangement at Functional Interfaces Inside Nanoparticles by Resonant High-Energy X-ray Diffraction” ACS Applied Materials & Interfaces 7 (2015) 23265.Paper

163. Binay Prasai, A. R. Wilson, B. J. Wiley,Y. Ren and Valeri Petkov “On the road to metallic nanoparticles by rational design: bridging the gap between atomic-level theoretical modeling and reality by total scattering experiments” Nanoscale 7 (2015) 17902.Paper

162. J. Wu, S. Shan, V. Petkov , B. Prasai, H. Cronk; J. Pharrah. J. Luo, C. J. Zhong "Composition-Structure-Activity Relationships for Palladium-Alloyed Nanocatalysts in Oxygen Reduction Reaction: An ex-situ/in-situ High Energy X-ray Diffraction Study" ACS Catalysis 5 (2015) 5317.Paper

161. N. M. Bedford, H.-R.-Dakhel, J. M. Slocik, B. D. Briggs, Y. Ren, A. I. Frenkel, V. Petkov , H. Heinz, R. R. Naik and M. R. Knecht “Elucidation of Peptide-Directed Palladium Surface Structure for Biologically Tunable Nanocatalysts” ACS Nano 9 (2015) 5082 (Journal Cover Story). Paper

160. B. Prasai, Y. Ren, Sh. Shan, Y. Zhao, H. Cronk, J. Luo, C.-J. Zhong and V. Petkov “Synthesis-atomic structure-properties relationships in metallic nanoparticles by total scattering experiments and 3D computer simulations: case of Pt–Ru nanoalloy catalysts” Nanoscale 7 (2015) 8122.Paper

159. H. N. Nong, H.-Suk Oh, T. Reier, E. Willinger, M.-G. Willinger, V. Petkov, D. Teschner and P. Strasser “Oxide-Supported IrNiOx Core–Shell Particles as Efficient, Cost-Effective, and Stable Catalysts for Electrochemical Water Splitting” Angew. Chem. Int. Ed. 54 (2015) 2975.Paper


158. S. Gupta, V. Petkov and S. Priya "Local atomic structure of KxNa(1-x)NbO3 by total XRD" Appl. Phys. Lett. 105 (2014) 232902.Paper

157. R. Loukrakpam, Q. Yuan, V. Petkov, L. Gan, S. Rudi, R. Yang, Y. Huang, S. R. Brankovic and P. Strasser “Efficient C–C bond splitting on Pt monolayer and sub-monolayer catalysts during ethanol electrooxidation: Pt layer strain and morphology effects” Phys. Chem. Chem. Phys. 16 (2014) 18866.Paper

156. S. Shan, J. Luo, J. Wu, N. Kang, W. Zhao, H. Cronk, Y. Zhao, P. Joseph, V. Petkov , C. J. Zhong "Nanoalloy Catalysts for Electrochemical Energy Conversion and Storage Reactions" RSC Advances 4 (2014) 42654.Paper

155. V. Petkov, B. Prasai, Y. Ren, S. Shan, J. Luo, P. Joseph and Ch.-J. Zhong “Solving the nanostructure problem: exemplified on metallic alloy nanoparticles” Nanoscale 6 (2014) 10048. Paper

154. N. Erini, R. Loukrakpam, V. Petkov , E. A. Baranova, R.Yang, D. Teschner, Y. Huang, S. R. Brankovic, and P. Strasser  “Ethanol Electro-Oxidation on Ternary Platinum-Rhodium-Tin Nanocatalysts: Insights in the Atomic 3D Structure of the Active Catalytic Phase” ACS Catalysis 4 (2014) 1859.Paper

153. S. Shan, V. Petkov, L.Yang, J. Luo, Ph. Joseph, D. Mayzel, B. Prasai, L. Wang, M. Engelhard and Ch.-J. Zhong " Atomic-structural synergy for catalytic oxidation of CO over Pd-Ni nanoalloys" J. Am. Chem. Soc. 136 (2014) 7140.Paper

152. Xian-Yang Quek, Ivo A. W. Filot, Robert Pestman, Rutger A. van Santen, Valeri Petkov and Emiel J. M. Hensen “Correlating Fischer–Tropsch activity to Ru nanoparticle surface structure as probed by high-energy X-ray diffraction” ChemComm. 50 (2014) 6005.Paper

151. V. Buscaglia, S.Tripathi, V. Petkov, M. Dapiaggi, M. Deluca, A. Gajovi, and Y. Ren “Average and local atomic-scale structure in BaZrxTi1-xO3 (x=0.10, 0.20, 0.40) ceramics by high-energy x-ray diffraction and Raman spectroscopy” J. Phys.: Condens Matter 26 (2014) 065901.Paper

150. D. Maurya, A. Kumar, V. Petkov , J. E. Mahaney, R. S. Katiyare and S. Priya “Local structure and piezoelectric instability in lead free (1-x)BaTiO3--xA(Cu1/3Nb2/3)O3 (A = Sr, Ca, Ba) solid solutions” RSC Advances 4 (2014) 1283.Paper

149. V. Petkov, Y. Ren, S. Shan, J. Luo and Ch. J. Zhong “A distinct atomic structure–catalytic activity relationship in 3–10 nm supported Au particles” Nanoscale 6 (2014) 532.Paper


148. S. Shan, V. Petkov, L.Yang, D. Mott, B.N. Wanjala, F. Cai, B. H. Chen, J. Luo and Ch.-J. Zhong “Oxophilicity and Structural Integrity in Maneuvering Surface Oxygenated Species on Nanoalloys for CO Oxidation” ACS Catalysis 13 (2013) 3075.Paper

147. R. Loukrakpam, Sh. Shan, V. Petkov, L.Yang, J. Luo and C. J. Zhong “Atomic Ordering Enhanced Electrocatalytic Activity of Nanoalloys for Oxygen Reduction Reaction” J. Phys. Chem. C 117 (2013) 20715.Paper

146. V. Petkov, S. Shastri, Sh. Shan, Ph. Joseph, J. Luo, C. J. Zhong, T. Nakamura, Y. Herbani and Sh. Sato “Resolving Atomic Ordering Differences in Group 11 Nanosized Metals and Binary Alloy Catalysts by Resonant High-Energy X-ray Diffraction and Computer Simulations” J. Phys. Chem. C 117 (2013) 22131.Paper

145. O. Gereben and V. Petkov  “Reverse Monte Carlo study of spherical sample under non-periodic boundary conditions: the structure of Ru nanoparticles based on x-ray diffraction data” J. Phys.: Condens. Matter 25 (2013) 454211. (Journal Cover Story).Paper

144. B. Gilbert, J. J. Erbs, R. Lee Penn, V.Petkov, D. Spagnoli, and G. A. Waychunas “A disordered nanoparticle model for 6-line ferrihydrite”  Am. Mineralogist 98 (2013) 1465.Paper

143. X. Tuaev, S. Rudi, V. Petkov , A. Hoell and P. Strasser “In Situ Study of Atomic Structure Transformations of Pt-Ni Nanoparticle Catalysts during Electrochemical Potential Cycling” ACS Nano 7 (2013) 5766.Paper

142. V. Petkov, S. Shan, P. Chupas, J. Yin, L. Yang, J.Luo and C.J. Zhong "Noble-transition metal nanoparticle breathing in a reactive gas atmosphere" Nanoscale 5 (2013) 7379.Paper

141. V. Petkov, C. M. Hessel, J. Ovtchinnikoff, A. Guillaussier, B. A. Korgel, X. Liu, and C. Giordano "Structure-Properties Correlation in Si Nanoparticles by Total Scattering and Computer Simulations" Chem. Mat. 25 (2013) 2365.Paper

140. Su-Ch. Yang, A. Kumar, V. Petkov and S.Priya ”Room-temperature magnetoelectric coupling in single-phase BaTiO3 –BiFeO3 system", J. Appl. Phys. 113 (2013) 144101.Paper

139. T. G. Fawcett, C. E. Crowder, S. N. Kabekkodu,  F. Needham,  J. A. Kaduk, T. N. Blanton, V. Petkov, E. Bucher, and R. Shpanchenko “Reference materials for the study of polymorphism and crystallinity in cellulosics” Powder Diffraction 28 (2013) 18. Paper

138. S. Tripathi and V. Petkov “Iso-structural phase transition in YMnO3 nanosized particles” Appl. Phys. Lett. 102 (2013) 061909. Paper

137. T. C. Monson, E. L. Venturini, V. Petkov , Y. Ren, M. Judith , D.L. Huber” Large enhancements of magnetic anisotropy in oxide-free iron nanoparticles” J. Magn. Mag. Mater. 331 (2013) 156.Paper

136. V. Petkov Y. Ren, S. Kabekkodu and D. Murphy " Atomic Pair Distribution Functions analysis of disordered low-Z materials ", Phys.Chem. Chem. Phys. 15 (2013) 8544.Paper


135. V. Petkov , Y. Lee, S.Sun and Y. Ren "Noncrystallographic Atomic Arrangement Driven Enhancement of the Catalytic Activity of Au Nanoparticles" J. Phys. Chem. C 116 (2012) 26668 Paper.

134.J. Yin, S. Shan, L. Yang, D. Mott, O. Malis, V. Petkov , F. Cai, M. S. Ng, J. Luo, B. H. Chen, M. Engelhard, C. J. Zhong "Gold-Copper Nanoparticles: Nanostructural Evolution and Bifunctional Catalytic Sites" Chem. Mater. 24 (2012) 4662 Paper.

133. B.N. Wanjala, B. Fang, S. Shan, V. Petkov, P. Zhu, R. Loukrakpam, Y. Chen, J. Luo, J. Yin, L. Yang, M. Shao and C-J. Zhong "Design of ternary nanoalloy catalysts: effect of nanoscale alloying and structural perfection on electrocatalytic enchancement" Chem. Mat. 24 (2012) 4283. Paper

132. S. Tripathi, V. Petkov , S. M. Selbach, K. Bergum, M.-A. Einarsrud, T. Grande and Y. Ren " Structural coherence and ferroelectric order in nanosized multiferroic YMnO3" PRB 86 (2012) 094101.Paper

131. V. Petkov , L. Yang, J. Yin, R. Loukrakpam, S. Shan, B. Wanjala, J. Luo, K. W. Chapman and C. -J. Zhong " Reactive Gas Environment Induced Structural Modification of Noble-Transition Metal Nanoparticles" PRL 109 (2012) 125504.Paper

130. Lefu Yang, Shiyao Shan, Rameshwori Loukrakpam, Valeri Petkov, Yang Ren, Bridgid N. Wanjala, Mark H. Engelhard, Jin Luo, Jun Yin, Yongsheng Chen, and Chuan-Jian Zhong “Role of Support-Nanoalloy Interactions in the Atomic-Scale Structural and Chemical Ordering for Tuning Catalytic Sites” J. Am. Chem. Soc. 134 (2012) 15048.Paper

129. M. J. Polking, M.-G. Han, A. Yourdkhani, V. Petkov, Ch. F. Kisielowski, V. V. Volkov, Y.Zhu, G. Caruntu, A. Paul Alivisatos and R. Ramesh “Coherent Ferroelectric Ordering in Individual Nanoscale Single Crystals” Nat. Mat. 11 (2012) 700.Paper

128. V. Petkov, R. Loukrakpam, L. Yang, B. N. Wanjala, J. Luo, C.-J. Zhong and S. Shastri,  “Pt-Au alloying at the nanoscale”, Nano Lett. 12 (2012) 4289.Paper

127. V. Petkov “Pair Distribution Function Analysis” Invited Review Article in Wiley’s “Characterization of Materials” 1361 (2012).Paper

126. V. Petkov, S. Shastri, B. Wanjala, R. Loukrakpam, J. Luo, and C.-J. Zhong “ Atomic ordering in nanosized PtxAu1-x (x=0,0.5,1) by resonant XRD and differential atomic pair distribution functions” Invited paper in Zeitschr. Kristall. 227 (2012) 262 Paper.

125. D. Maurya, V. Petkov, A. Kumar and S. Priya “Nanostructured Lead – Free Ferroelectric Na0.5Bi0.5TiO3-BaTiO3 Whiskers: Synthesis Mechanism and Structure” Dalton Trans. 41 (2012) 5643 Paper.

124. V. Petkov, Y. Ren and M. Suchomel “Molecular arrangement in water: random but not quite”  Featured article in J. Phys.: Condens. Matter 24 (2012) 155102 Paper.


123. R. Loukrakpam, B. N. Wanjala, J. Yin, B. Fang, J. Luo, M. Shao, L. Protsailo, T. Kawamura, Y. Chen, V. Petkov, and Ch.-J. Zhong “Structural and Electrocatalytic Properties of PtIrCo/C Catalysts for Oxygen Reduction Reaction” ACS Catalysis 1 (2011) 562 Paper.

122. M. Welborn, W. Tang, J. Ryu, R. M. Crooks, V. Petkov, and G. Henkelman “A combined density functional and x-ray diffraction study of Pt nanoparticle structure” J. Chem. Phys. 135 (2011) 014503 Paper.

121. V. Petkov, A. Timmons, J. Camardese and Y. Ren,Li insertion in ball-milled graphitic carbons by total x-ray diffraction”, Featured article in J. Phys.: Condensed Matter 23 (2011) 435003 Paper.

120. S. Le Roux, S. Martin, R. Christensen, Y. Ren and V. Petkov , “Three dimensional structure of multicomponent (Na2O)0.35 [(P2O5)1-x (B2O3)x]0.65 glasses by high energy X-ray diffraction and constrained  reverse Monte Carlo simulations” J. Phys.: Condens. Matter 23 (2011) 035403 Paper.


119. V. Petkov, S. M. Selbach, M.-A. Einarsrud, T. Grande and S. D. Shastri, “Melting of Bi-sublattice in nanosized BiFeO3 perovskite by resonant x-ray diffraction” , Phys. Rev. Lett. 105 (2010) 185501 Paper.  

118. V. Petkov  and  S. Shastri, “Element-Specific View of the Atomic Ordering in Materials of Limited Structural Coherence by High-Energy Resonant X-Ray Diffraction and Atomic Pair Distribution Functions Analysis: A Study of PtPd Nanosized Catalysts”, Phys. Rev. B 81 (2010) 165428 Paper.
117. V. Petkov, I. Moreels, Z. Hens and Y. Ren, “PbSe Quantum dots: Finite, off-stoichiometric and structurally distorted” Phys. Rev. B 81 (2010) 241304(R)Paper.
116. V. Petkov and D. Le Messurier, “Atomic-scale structure of GeSe2 glass revisited: a continuous or broken network of Ge-(Se1/2)4 tetrahedra”, J. Phys.: Condens. Matter 22 (2010) 115402 (IOP Select Paper) Paper.

115. Ch. R. Muller, V. Kathriarachchi, M. Schuch, P. Maass and V. Petkov “Evaluation of Reverse Monte Carlo Models based on Molecular Dynamics Simulations: A Case Study of Ion Conducting Network Glasses”, Phys. Chem. Chem. Phys. 12 (2010) 10444. reprint

114. S. L. Roux and V.  Petkov, “I.S.A.A.C.S. - Interactive Structure Analysis of Amorphous and Crystalline Systems”, J. Appl. Crystallogr. 43 (2010), 181. Paper


113.V. Petkov, P. D. Cozzoli, R. Buonsanti, R.Cingolani, and Y.RenSize, shape and internal atomic ordering of nanocrystals by atomic pair distribution functions: a comparative study of gamma-Fe2O3 nanosized spheres and tetrapods”, JACS Comm. 131 (2009) 14264 Paper.

112. M. J. Manos, V. Petkov and M. Kanatzidis “H2xMnxSn3-xS6 (x =0.11–0.25): A Novel Reusable Sorbent for Highly Specific Mercury Capture Under Extreme pH Conditions”, Adv. Func. Mat. 19 (2009) 1 Paper.

111. V. Petkov, “3D structure of Nanosized catalysts by High-energy X-ray diffraction“, Synchr. Rad. News 22 (2009) 29  Paper.

110. T. Spassov, S. Todorova and V. Petkov, “Kinetics of Mg6Ni nanocrystallization in amorphous Mg83Ni17”, J. Non-Cryst. Solids 355 (2009) 1 Paper.

109. V. Petkov, K. Poppelmeier and Y. Ren  “Atomic-scale structure of biotic nanophase materials by high-energy x-ray diffraction: study of bacteria and fungi-made MnOxACS Nano 3 (2009) 441 Paper.

 108. D. Le Messurier, V. Petkov,  S.W. Martin  and Y. Ren,  “Three-dimensional structure of fast-ion conducting 0.5Li2S+0.5[(1-x)GeS2+xGeO2] glasses from high-energy x-ray diffraction and RMC modeling”, J. Non-Cryst. Solids 335 (2009) 430 Paper.


107.V. Petkov, "Nanostructure by high-energy XRD", Journal Cover Story: Materials Today 11 (2008) 28 Paper.

  106. V. Petkov, V. Buscaglia, M. Buscaglia, Z. Zhao and Y. Ren “Structural Coherence and Ferroelectricity Decay in Submicron-  and Nano-sized Perovskites”, Phys. Rev. B 78 (2008) 054107 Paper.

105. Marc R. Knecht, Michael G. Weir, V. Sue Myers, William D. Pyrz, Heechang Ye, Valeri Petkov, Douglas J. Buttrey, Anatoly I. Frenkel, and Richard M. Crooks “Synthesis and Characterization of Pt Dendrimer-Encapsulated Nanoparticles:  Effect of the Template on Nanoparticle Formation”, Chem. Mat. 20 (2008) 5218 paper.

104. V. Petkov, N. Bedford, M. R. Knecht , M. G. Weir , R. M. Crooks , W. Tang , G. Henkelman  and A.  Frenkel “Periodicity and atomic ordering in nanosized particles of crystals" J. Phys. Chem. C 112 (2008) 8907 paper.

103. Céline Dablemont, Philippe Lang, Claire Mangeney, Jean-Yves Piquemal, Valeri Petkov, Frédéric Herbst, Guillaume Viau, "Functionalization and grafting of platinum nanoparticles on alumina surfaces: an FT-IR and XPS study", Langmuir 24 (2008) 5832 paper.


102.Swapan K. Pradhan, Yuanbing Mao, Stanislaus S. Wong, Peter Chupas and Valeri Petkov, “Atomic-scale structure of nanosize titania and titanate: particles, wires and tubes”, Chem. Mat. 19 (2007) 6180 paper.

101. N. Bedford, G. Viau, P. Chupas and V. Petkov, “3D structure of nanosize catalysts by high-energy XRD and RMC simulations: study of Ru”, J. Phys. Chem. C 111 (2007) 18214 paper.

100. M. Gateshki, Q. Chen, L.-M. Peng, P. Chupas and V. Petkov "Structure of nanosize materials by high energy XRD: study of titania nanotubes", Zeit. Kristall. 222 (2007) 612 paper.

99. S. K. Pradhan,  Z. T. Deng,
F. Tang, C. Wang, Y. Ren , P. Moeck and V. Petkov, “3D structure of CdX (X=Se, Te) nanocrystals by total x-ray diffraction”, J. Appl. Phys. 102 (2007) 044304

98. M. Gateshki, S. Yin, Y. Ren and V. Petkov "Titania polymorphs by soft chemistry: is there a common structural pattern ? " Chem. Mater. 19 (2007) 2512 paper.

S. K. Pradhan, M. Gateshki, M. Niederberger, Y. Ren and V. Petkov, “Pb(Zr/Ti)O3 by soft synthesis: Structural aspects” Phys. Rev. B 76 (2007) 014114 paper.  

96. M. Gateshki, M. Niederberger, A. S. Deshpande, Y.Ren and V. Petkov, "Atomic-scale structure of nanocrystalline CeO2-ZrO2 oxides by high-energy X-ray diffraction", J. Phys.: Condens Matter, 19 (2007) 156205 


95. V. Petkov, T. Ohta, Y. Hou and Y. Ren  “Atomic-scale Structure of Nanocrystals by High-Energy X-ray Diffraction and Atomic PairDistribution Function Analysis: Study of FexPd100-x (x=0, 26, 28, 48) nanoparticles”, J. Phys. Chem. C 111 (2007) 714

94. B. Wachter, K. Chrissafis, V. Petkov, C. D. Malliakas,Daniel Bilc, Th. Kyratsi, K. M. Paraskevopoulos, S. D. Mahanti, T. Torbrgge, H. Eckert and M. G. Kanatzidis "Local structure,bonding and phase-change behavior in the chalcogenides K1-xMxSb5S8(M=Rb,Tl)Solid State Chem. 180 (2007) 420 paper.

93. M. Gateshki, V. Petkov, T. Hyeon, M. Niederberger and Y. Ren, “Interplay between the local structural disorder and the length of structural coherence in stabilizing the cubic phase in nanocrystalline ZrO2”, Solid State Comm.138 (2006) 279 paper.

92. V. Petkov, M. Gateshki, M. Niederberger and Y. Ren, "Atomic-scale Structure of Nanocrystalline BaxSr1- xTiO3 (x=1,0.5,0) by X-ray Diffraction and the Atomic Pair Distribution Function Technique”. Chem. Mater. 18 (2006) 814 paper


91. V. Petkov, M. Gateshki, J Choi, E.D. Gillian and Y. Ren, "Structure of nanocrystalline GaN from X-ray diffraction, Rietveld and aomic pair distribution function analyses", J. Mater. Chem. 15 (2005) 4654

90. V. Petkov, Y. Peng, G. Williams, B. Huang, D. Tomalia and Y. Ren, “Three-dimensional structure of gold nanoparticles in water by x-ray diffraction and computer simulations”, Phys. Rev. B 72 (2005) 195402 paper.

89. M. Gateshki, V. Petkov, S. K. Pradhan and T. Vogt, “Structure of Nanocrystalline MgFe2O4 From X-ray Diffraction, Rietveld and Atomic Pair Distribution Function Analysis”, J. Appl. Cryst. 38 (2005) 772

88. Toni Spassov, Valeri Petkov and P.Solsona , “Hydriding/dehydriding of Mg87Ni3Al3Mm7 (Mm=La,Ce-rich mischmetal) alloy produced by mechanical milling”, J. Alloys and Compounds 403 (2005) 363

87. Valeri Petkov, Vencislav Parvanov, Pantelis Trikalitis, Christos Malliakas, TomVogt and Mercouri Kanatzidis, “Three-dimensional structure of Nanocomposites from Atomic Pair Distribution Function Analysis: Study of Polyaniline and (Polyaniline)xV2O5.nH2O”, J. Am. Chem. Soc. 127 (2005) 8805

86.  Jin Luo, Mathew M. Maye, Valeri Petkov, Nancy N. Kariuki, Lingyan Wang, Peter Njoki, Derrick Mott,  Yan Lin, and Chuan-Jian Zhong, “Carbon-Supported AuPt Nanoparticles with Different Bimetallic Compositions”, Chem. Mater.,  17 (2005) 3086

85. M. Gateshki, V. Petkov, G. Williams, S. K. Pradhan and Yang Ren, "Atomic scale structure of nanocrystalline ZrO2", Phys. Rev. B 71 (2005) 224107

S.J.L. Billinge, E.J. McKimmy, M. Ahatnawi, H-J Kim, V. Petkov, D. Wermeille, T.J. Pinnavaia, “Mercury binding sites in Thiol-functionalized mesostructured silica” ,  J. Am. Chem. Soc. 127 (2005) 8492

83. W. Yao, S.W. Martin and V. Petkov, “Structure determination of low-alkali-content Na2S + B2S3 glasses using neutron and synchrotron x-ray diffraction”, J. Non-Cryst. Sol. 351 (2005) 1995

82. S.K. Pradhan, S. Bid, M. Gateshki and V. Petkov, ”Microstructure characterization and cation distribution of  nanocrystalline magnesium ferrite prepared by ball milling”, Mat. Chem. Phys. 15 (2005) 224 paper.

81. V. Petkov, “Atomic-scale structure of glasses using high-energy x-ray diffraction”, J. Am. Ceram. Society  88 (2005) 2528

80. Wenfu Yan, Valeri Petkov, Shannon M. Mahurin and Sheng Dai, “ Ultra-small gold nanoparticles on titania modified SBA-15”, Catal. Communications 6 (2005) 404

79. V. Petkov, V. Parvanov,  D. Tomalia, D. Swanson, D. Bergstrom and T. Vogt, “3D structure of dendritic and hyper-branched macromolecules by x-ray diffraction”, Solid State Communications, 134
(2005) 671 paper.


78. Milen Gateshki, Seong-Ju Hwang, Dae Hoon Park, Yang Ren, and Valeri Petkov, “Structure of exfoliated  titanate nanosheets determined by atomic pair distribution function analysis”, Chem. Mater. 16 (2004) 5153.paper

77. E. Bozin, V. Petkov, P. Barnes, P. Woodward, T. Vogt, S. Mahanti and S.Billinge, “Temperature dependent  total scattering structural study of CaCu3Ti4O12”, J. Phys.: Condens. Matter 16 (2204) S5091. 
papaer text

76. M. Gateshki, Seong-Ju Hwang, D. H. Park, Y. Ren, and V. Petkov, "Structure of Nanocrystalline Alkali Metal Manganese Oxides by the Atomic Pair Distribution Function Technique", J. Phys. Chem. 108 (2004) 14876

75. M.A. Morales, D.S. Williams, P.M. Stand, C. Stark, T.M. Pekarek, L.P. Yue, V. Petkov and D.L. Leslie-Pelecky, “Disorder-Induced Depression of the Curie temperature in Mechanically Milled GdAl2”, Phys. Rev. B 70, (2004) 184407
74. V. Petkov, “Atomic-scale structure of nanocrystals by the atomic pair distribution function technique”, Molecular Simulations 31 (2005) 101.

73. V. Petkov, P. Y. Zavalij, S. Lutta, M. S. Whittingham, V. Parvanov and S. Shastri, "Structure beyond Bragg: Study of V2O5 nanotubes", Phys. Rev. B 69 (2004) 085410


72. D. Williams, P.M. Shand, T. Pekarek, R. Skomski, V. Petkov and D.L. Leslie-Pelecky, “Magnetic transitions in disordered GdAl2”, Phys. Rev. B 68 (2003) 214404. paper

71. V. Petkov, D. Qadir and S. Shastri, “Rapid structure determination of disordered materials: study of GeSe2 glass”, Solid State Comm. 129 (2004) 239
GeSe2 paper.

70. V.Petkov and T .Vogt, ‘Positional disorder of Ba in the thermoelectric germanium clathrate Ba6Ge25”, Solid State Comm. 127 (2003) 43

69. P.Trikalitis, Valeri Petkov and M. G. Kanatzidis “Structure of Redox Intercalated (NH4)0.5V2O5.mH2O Xerogel Using the Pair Distribution Function Technique”, Chem. Mater. 15 (2003) 3337
ammonia paper.

68. V. Petkov, “Structure determination of nanocrystalline materials by the atomic pair distribution function technique”, Adv. X-ray Anal. vol. 46 (2003) 31.


67. S-J. Hwang, V. Petkov, K.K. Rangan,  S. Shastri and M.G. Kanatzidis, "Structure of nanocrystalline materials with intrinsic disorder from Atomic Pair Distribution Function Analysis: The Intercalation compound AgxMoS2", J. Phys. Chem. B 106 (2002) 12453 .

66. V. Petkov , S.J.L. Billinge, T .Vogt, A.S. Ichimura and J.L. Dye, "Structure of intercalated Cs in zeolite ITQ-4: an array of metal  ions and correlated electrons confined in a pseudo-1D nanoporous host", Phys. Rev. Lett. 89 (2002) 075502

65.  V. Petkov, E. Bozin, S.J.L. Billinge, T. Vogt, P. Trikalitis and M. Kanatzidis, "Structure of nanocrystalline V2O5.nH2O xerogel determined by the atomic pair distribution function technique",  J. Am. Chem. Soc.  124 (2002) 10157 pdf.

64.  V. Petkov, S.J.L. Billinge, P. Larson, S.D. Mahanti, T. Vogt, K. K. Rangan and M. Kanatzidis, "Structure of nanocrystalline materials using atomic pair distribution function analysis: Study of LiMoS 2" Phys. Rev. B 65 (2002) 092105 PDF.

63.  Th. Proffen, V. Petkov, S.J.L. Billinge and T. Vogt, "Chemical short-range order obtained by the atomic pair distribution function", Z. Kristallogr. 217 (2002) 47 .

62.  T. Pauly, V.Petkov , Y. Liu, S.J.L. Billinge and T. Pinnavaia, "Role of sodium versus local framework structure in determining the hydrothermal stability of MCM-41 mesostructures", J. Am. Chem. Soc., 124 (2002) 99 .


61. V. Petkov, S.J.L. Billinge, S.D. Shastri and B. Himmel,  "High-resolution atomic distribution functions of disordered materials by high energy x-ray diffraction, J. Non-Cryst. Sol. 293/295 (2001) 726 .

60. S. J. L. Billinge, V. Petkov , Th. Proffen, G. H. Kwei, J. L. Sarrao, S. D. Shastri and S. Kycia, "Charge inhomogeneities in the colossal magnetoresistant manganites from the local atomic structure", Mater. Res. Soc. Symp. Proc602 (2001) 177 .

59. V. Petkov and S.J.L. Billinge, "Local structure of random InxGa1-xAs alloys by full-profile fitting  analysis of  atomic pair distribution functions", Physica B 305 (2001) 83 .

58. V. Petkov and S.J.L. Billinge, "Structure of crystallographically challenged materials by profile analysis of  atomic pair distribution functions", Mat. Res. Soc. Proceed . 678 (2001) EE.1.5.1. .

57. V. Petkov and S.J.L. Billinge, "From crystals to nanocrystals: semiconductors and beyond" in " From semiconductors to proteins: beyond the average structure", Kluwer Academic/Plenum Press (2001) p 153.

56. I-K. Jeong, F. Mohiuddin-Jacobs, V. Petkov, S.J.L. Billinge and S. Kycia, "Local structure of In xGa1-xAs  semiconductor alloys using high-energy synchrotron x-ray diffraction", Phys. Rev. B. 63 (2001) 205202 .


55. V. Petkov, S.J.L. Billinge, S. Sashtri and B. Himmel, 'Polyhedral units and connectivity in calcium  aluminosilicate glasses from high-energy x-ray diffraction', Phys. Rev. Lett. 85 (2000) 3436 .

54. O. Stachs, Th. Gerber and V. Petkov, "An Image plate chamber for x-ray diffraction experiments in Debye-Scherrer geometry", Rev. Sci. Inst. 71 (2000) 4007 .

53. M. Wachhold, K. Kashturi-rangan, M.F. Thorpe, S.J.L. Billinge, V.Petkov, J. Heising and M.G. Kanatzidis, 'Mesostructured metal germanium sulfide and selenide frameworks based on the tetrahedral Ge4(S/Se 10) units, J. Solid State. Chem. 152 (2000) 21.

52. V. Petkov, S.J.L. Billinge, J, Heising, M.G. Kanatzidis, S, Shastri and S. Kycia "High real-space resolution structure of materials by high-energy x-ray diffraction", Materials Research Society Symposia  Proceeding 590 (2000) 151.

51. V. Petkov, S.J.L. Billinge, J. Heising and M. Kanatzidis, "Application of atomic pair distribution  function analysis to materials with intrinsic disorder. Three-dimensional structure of exfoliated-restacked  WS2: Not just a random turbostratic assembly of layers" J. Am. Chem. Soc. 122 (2000), 11571 .

50. S.J.L. Billlinge, Th. Proffen, V. Petkov, J.L. Sarrao and S. Kycia, " Evidence for charge localization   in the ferromagnetic phase of La-Ca-Mn-O from high-real-space resolution x-ray diffraction", Phys. Rev B 62(2000) 1203.

49. V. Petkov , I-K. Jeong, F.M.-Jacobs, Th. Proffen, S.J.L. Billinge and W. Dmowski,  "Local structure of In0.5Ga 0.5As by joint high-resolution and differential pair distribution function analysis" J. Appl. Phys. 88 (2000) 665 .

48. M. Wachhold, K. Rangan, S.J.L. Billinge, V. Petkov, J. Heising and M. Kanatzidis, "Mesostructured non-oxide solids with adjustable worm-hole shaped pores: metal germanium selenide and sulfide frameworks based on the tetrahedral  {Ge 4/Oxygen10 } clusters", Adv. Mater. 12 (2000) 85 .


47. O. Stachs, V. Petkov , B. Himmel and Th. Gerber, "A secondary graphite crystal spectrometer for anomalous X-ray diffraction experiments", Nucl. Inst. & Methods A 434 (1999) 473.

46. O. Stachs, Th. Gerber and V. Petkov, "The structure formation of zirconium oxide gels in alcoholic solution", J. Sol-Gel. Sci. & Techn. 15 (1999) 23.

45. V.Petkov, I-K. Jeong, J.S. Chung, M.F. Thorpe and S.Kycia and S.J.L. Billinge, 'High-real space resolution measurement of the local structure of InxGa 1-xAs semiconductor alloys using X-ray diffraction', Phys. Rev. Lett. 83(1999) 4089 .

44. V.Petkov, R.G. DiFrancesco, S.J.L. Billinge. M. Acharaya and H.C. Foley, 'Local structure of nanoporous carbon', Phil Mag. B 79 (1999) 1519 .

43. K. Kashturi Rangan, S.J.L. Billinge, V. Petkov, J. Heising and M. Kanatzidis, ' Aqueous mediated synthesis of mesostructured germanium sulfide with hexagonal order', Chem. Mater11 (1999) 2629.

42.V. Petkov , T. Sapassov, S. Surinah, and M. Baro “New Gd-Al nanophase obtained by crystallization of Gd4Al3 metallic glass”, Nano98 Conference, Stockholm, Nanostructured Materials 12(1999) 609.

41. M. Acharaya, J. Mathews, M. Strano, S.J.L. Billinge,V. Petkov, S. Subramoney and H. C. Foley, ' Simulation of nanoporous carbons: a chemically constrained structure.' Phil Mag. B 79 (1999) 1499.

40. V. Petkov , O. Stachs, Th. Gerber, D. Ilieva and Y. Dimitriev, ' Atomic ordering in xGa2O3* (100-x)TeO2 glasses  (x=10,17.5,25) by X-ray diffraction'. J. Non-Cryst. Sol. 248 (1999) 65.


39.V. Petkov and R. Danev, ‘IFO - a program for image reconstruction-type calculation of  atomic distribution functions for disordered materials’, J. Appl. Cryst . 31 (1998) 609 paper.

38.V. Petkov , G. Holzhuter, , U. Troge, Th. Gerber and B. Himmel, 'Atomic -scale structure of amorphouTiO2 by electron, X-ray diffraction and reverse Monte Carlo simulations’, J. Non-Cryst. Sol. 231 (1998) 17.

37. V. Petkov , Th. Gerber and B. Himmel, „Atomic ordering in Cax/2Al xSi1-xO2 glasses (x=0.,0.34, 0.5,0.68) by energy dispersive X-ray diffraction“, Phys. Rev. B58 (1998), 11982.

36. M. Grigorova, H. Blythe, V. Blaskov, V. Russanov, V. Petkov, V. Masheva, D. Nihtianova, L. Martinez, A. Munoz and M. Mikhov, “Magnetic and Mosbauer spectra of nanosized CoFe2O4 powders”, J. Magn.Magn. Mater. 183 (1998) 163.


35. O. Stachs, V. Petkov and Th. Gerber , „Structure of ZrO2SiO2 gels“, J. Appl. Cryst. 30 (1997) 670.

34. K. Sugiyama, V. Petkov and S. Takeda, "Energy-dispersive X-ray diffraction (EDXD)  technique for structural studies of disordered materials. Application to SiO 2 , SrP2 O5 , Pd80Si 20 , Fe40Ni40 P14B6 glasses and liquid Hg", Mater. Trans. High Temperature Materials and Processes 16(1997) 49.

33. T. Spassov, V. Petkov and U. Koster "Nanocrystallization, grain growth and phase transformations in rapidly quenched Co33Zr67alloys", Rapidly quenched and metastable materials Conference (RQ9, B ratislava, August (1996) Proceedings Elsevier, (1997) p. 225.

32. O. Stachs, Th. Gerber and V. Petkov , "Atomic ordering in xZrO2 .(1-x)SiO2 xerogels (x=0.3,0.5) by X-ray diffraction and reverse Monte Carlo simulations", J. Mat. Sci . 32 (1997) 4209.

31. O. Stachs, Th. Gerber and V. Petkov, "Atomic-scale structure of ZrO2 xerogels by X-ray diffraction and reverse Monte Carlo simulations", J. Non-Cryst. Sol. 210 (1997) 14.


30. V. Petkov and G. Yunchov, "Atomic ordering in Bi4 Ge3O12 melt by reverse Monte Carlo simulations’ J. Phys.: Condens. Matter 8(1996) 6145.

29. V. Blaskov,V. Petkov ,V. Rusanov, L. M. Martinez, B. Martinez, J. Munoz and M. Mikhov, "Magnetic properties of nanophase CoFe2O4 particles", J. Magn. Mag. Mater. 162 (1996) 331.

28.V. Petkov, K. Yano and E. Kita, "Atomic-scale structure of Gd xFe 100-x melt-quenched amorphous alloys by X-ray diffraction (x=22,36,56)", Phys. Stat. Sol.  A157 (1996) 365.

27.V.Petkov and G.Yunchov, "Atomic ordering in liquid Se by unconstrained reverse  Monte Carlo simulations", J. Phys.: Condens. Matter.8 (1996) 1869.

26. D. Arsova, E. Vateva, E. Skordeva and V. Petkov, "New features of the medium range order in GexAs40-xSe60 glasses", Solid State Commun. 98 (1996) 595.


25. V. Petkov and G. Yunchov, "Energy-dispersive X-ray diffraction and reverse Monte Carlo study on liquid Hg", J. Non-Cryst. Sol. 192&193(1995) 636.

24. V. Petkov , "Energy-dispersive X-ray diffraction analysis of disordered materials", J. Non-Cryst. Sol. 192&193 (1995) 65.

23. V. Petkov, "Atomic arrangement in liquid Si and Ge by structural diffusion model calculations", J. Phys.: Condens. Matter. 7 (1995) 5745.


22.V. Petkov and G. Junchov, "Atomic-scale structure of liquid Sn, Ge and Si by reverse  Monte Carlo simulations",  J. Phys.: Condens. Matter 6(1994) 10885.

21.V. Petkov , S. Takeda, Y. Waseda and K. Sugiyama, "Structural study of molten  germanium by Energy- dispersive  X-ray diffraction", Journal of Non-Crystalline Solids , 168 (1994) 97.

20. V. Petkov and A. Apostolov, "Short-range order in TbCu2 and DyCu2 metallic glasses",Journal of Non-Crystalline Solids, 167 (1994) 255.


19. K. Sugiyama, V. Petkov , S. Takeda and Y. Waseda, "Energy-dispersive X-ray diffraction (EDXD) apparatus  for liquids at high temperature", Sci. Reports Inst. Tohoku University, A 38 (1993) 1.

18.V. Petkov and Y. Waseda, "PEDX: a program for radial distribution function analysis of energy-dispersive X-ray diffraction data from disordered systems", J. Appl. Cryst. 26 (1993), 295. Paper


17. V. Petkov , A. Apostolov, G. Hilscher and H. Sassik, "Correlation between the degree of structural disorder and the frustration of magnetic order in Gd 4 Mn3 metallic glass", J. Magn. Magn. Mater . , 109 (1992) 309.


16. V. Petkov, V. Skumrjev and A. Apostolov,"Correlation between the structure and the magnetic properties in Gd4Me3 (Me=Al,Cu)", Mat. Sci.and Engn. A 133 (1991) 252.


15.V. Petkov , A. Apostolov and H. Sassik, "Short-range order in Gd4Cu 3 metallic glass", J. Non-Cryst. Sol. 122(1990) 262.

14.V. Petkov and N. Bakaltchev, "FIT, a computer program for decomposition of powder diffraction patterns and profile analysis of pair correlation functions", J. Appl. Cryst. 23 (1990) 138.


13.V. Petkov , "RAD, a program for analysis of X-ray diffraction data from amorphous materials for personal computers",J. Appl. Cryst. 22 (1989) 387.

12.V. Petkov, A. Apostolov and V. Skumryev, "Short-range order in RE4Al3 metallic glasses (RE=Pr,Gd,Tb,Dy)",  J. Non-Cryst. Sol. 110 (1989) 184.

11. V. Petkov , A. Apostolov, S. Neov, B. Sidjimov and I. Gerasimova, 'CRYSRDF, a computer program for structural diffusion model calculations", Proceedings of the Forth International Conference on X-ray diffraction methods, Nesebar, Bulgaria, 1989, p.113-117.

10. V. Petkov , A. Apostolov and V. Skumryev, "Radial distribution functions for RE 4Al3 metallic glasses (RE=Pr,Gd, Tb,Dy)", J. Non- Cryst. Sol. 108(1989) 75.


9. K. Petrov, D. Kovatcheva and V. Petkov , "Cationic distribution of Magnesium Cobalt Oxide Spinel Prepared by Thermal Decomposition of Mixed Hydroxide Nitrate Crystals", Bulg. J. Phys.15(1988) 437.

8. V. Skumryev, H. Gamari-Seale,D-X Chen, V. Petkov, K. Rao and A. Apostolov, "Amorphous Gd4Al3 - a new ferroglass alloy",J. Phys. (Paris) 49 (1988) C8-1363.

7. A. Apostolov and V. Petkov , "Radial distribution functions for Gd4Al3 and Dy4Al3 metallic glasses", Zeitsch.  fur. Kristall . 185 (1988) 546.


6. V. Petkov , S. Kovachev, S. Savchenko, L. Bozukov, D. Kovacheva and S. Kovachev, "Automated
system for X-ray diffraction acquisition and reduction based on APPLE II microcomputers", Proceedings of the Third International Conference on X-ray diffractionmethods, Varna, Bulgaria, 1987, p. 38-41.


5. K. Petrov, V. Petkov and M. Mikhov, "Cationic distribution of Cux Co3-xO4 (0<x<1)",  Mat. Chem and Phys . 15 (1986) 511.

4. L. Markov, K. Petrov and V. Petkov, "On the thermal decomposition of some cobalt  hydroxide nitrates", Therm. Acta, 106 (1986) 283.


3. K. Petrov, V. Petkov and P. Rachev, "X-ray diffraction and electron microscopy studies on the morphology of the CuCo2O4 spinel prepared by thermal decomposition of copper(II)-Cobalt(II) hydroxonitrates", Mat. Chem. Phys .13 (1985) 577.

2. V. Petkov , D. Kovacheva and K. Petrov, "Practical aspects of the modeling of X-ray diffraction spectra from polycrystalline materials", Proceedings of  the Second International Conference on X-ray diffraction methods , Primorsko, Bulgaria, 1985, p.90-99.

1. V. Petkov and M. Mikhov, "Magnetic phase diagram of the MnAs spin system: a computer simulation", J. Phys. C (Solid State Physics) 18 (1985) 3791.