Veniamin V. Kondratiev
Doctor of Chemical Sciences
Acting Head of the Department of Electrochemistry
- Design of novel hybrid organic-inorganic energy storage materials
- Characterization of physical and electrochemical properties of materials applicable in energy storage systems
- The study of fundamentals of charge transfer processes in electroactive materials
- Development of prototypes of energy storage devices for lithium-ion batteries, supercapacitors and fuel cells
- Areas of scientific interests
- Lecture courses
- International scientific contacts
- Scientific research
- Selected Publications
- Head of RFBR and SPbSU grants for projects
- redox polymers
- conducting polymers
- metal nanoparticles,
- metal-polymer nanocomposite materials
- electrochromic coatings
- energy-saving devices
- Li-ion batteries
- Double Electric Layer and Adsorption Effects
- Electroactive polymers
- Modern Electrode Materials
- ISE member
- Collaboration with prof. Gyozo Lang, Eotvos Lorand University, Budapest, Hungary, Laboratory of Electrochemistry and Electroanalytical Chemistry
- Collaboration with prof. Anthony J. Killard, West England University, Bristol, UK, Laboratory of Bioanalytical Chemistry
- Collaboration with prof. Renato Seeber, Modena University, Italy, Laboratory of Electroanalytical Chemistry
- Collaboration with prof. Li Niu, Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, China
The main direction of the research of the scientific group is focused at the electrochemical synthesis and investigation of the properties of conducting organic polymers, redox polymers and composite materials based on them, obtained as thin films or phase layers on the electrode surface. In recent years, experimental and theoretical studies have been focused on the development of scientific and technological fundamentals for obtaining new electrode materials, studying the kinetics and mechanism of solid-phase charge transfer processes in such materials. Composite electrode materials based on organic conducting polymers of thiophene series, mainly poly-3,4-ethylenedioxythiophene and inorganic compounds (rechargeable oxides and other compounds of transition metals, noble metal nanoparticles) are studied.
Metal-polymer nanocomposite materials, developed by the group, are promising for application in a number of fields of science and technology, in particular, as energy-intensive electrode materials for the development of new energy-saving devices (batteries, supercapacitors), as catalysts for important electrochemical processes in fuel electrochemical cells and sensors, and also as electrochromic coatings.
To study the electrochemical properties of materials, methods of cyclic voltammetry, rotating disc electrode, spectroelectrochemistry, galvanostatic charge-discharge, electrochemical quartz microgravimetry, and electrochemical impedance spectroscopy are used. The composition and structure of materials are studied using X-ray diffraction analysis, X-ray photoelectron spectroscopy, scanning and transmission electron microscopy, IR spectroscopy, electronic absorption spectroscopy, and other methods.
- S.N. Eliseeva, R.V. Apraksin, E.G. Tolstopjatova, V.V. Kondratiev Electrochemical impedance spectroscopy characterization of LiFePO4 cathode material with carboxymethylcellulose and poly-3,4-ethylendioxythiophene /polystyrene sulfonate // Electrochimica Acta 227 (2017) 357-366.
- V.V. Kondratiev, V.V. Malev, S.N. Eliseeva Composite electrode materials based on conducting polymers loaded with metal nanostructures // Russian Chemical Reviews 85 (2016) 14-37.
- R.V. Apraksin, S.N. Eliseeva, E.G. Tolstopjatova, A.M. Rumyantsev, V.V. Zhdanov, V.V. Kondratiev High-rate performance of LiFe0.4Mn0.6PO4 cathode materials with poly(3,4-ethylenedioxythiopene):poly(styrenesulfonate)/ carboxymethylcellulose // Materials Letters 176 (2016) 248–252
- A.I. Volkov, S.N. Eliseeva, E.G. Tolstopjatova, V.V. Kondratiev Еlectrochemical properties of poly-3,4-ethylenedioxythiopene:polystyrene sulfonate/manganese oxide composite electrode material // J. Solid State Electrochem. 20 (2016) 3209–3212.
- G.G. Láng, M. Ujvári, S. Vesztergom, V. Kondratiev, J.Gubicza, K.J. Szekeres The electrochemical degradation of poly(3,4-ethylenedioxythiophene) films electrodeposited from aqueous solutions // Zeitschrift für Physikalische Chemie. 230 (2016) 1281–1302.
- A.N. Aleshin, P.S. Krylov, A.S. Berestennikov, V.V. Kondratiev, S.N. Eliseeva The redox nature of the resistive switching in nanocomposite thin films based on graphene (graphene oxide) nanoparticles and poly(9-vinylcarbazole) // Synthetic Metals 217 (2016) 7-13.
- A.O. Nizhegorodova, R. V. Apraksin, V. V. Kondratiev Electrochemical Properties of Composite Materials Based on Poly-3,4-Ethylenedioxythiophene with Nickel Oxide Inclusions // Russian Journal of Electrochemistry 51 (2015) 908-915.
- M. Ujvári, J. Gubicza, V. Kondratiev, K. J. Szekeres, G.G. Láng Morphological changes in electrochemically deposited poly(3,4-ethylenedioxythiophene) films during overoxidation // Journal of Solid State Electrochemistry 19 (2015) 1247–1252.
- S.N. Eliseeva, O.V. Levin, E.G. Tolstopjatova, E.V. Alekseeva, R.V. Apraksin, V.V. Kondratiev New functional conducting poly-3,4-ethylenedioxythiopene:polystyrene sulfonate/carboxymethylcellulose binder for improvement of capacity of LiFePO4-based cathode materials // Materials Letters 161 (2015) 117-119.
- O.V. Levin, S.N. Eliseeva, E.V. Alekseeva, E.G. Tolstopjatova, V.V. Kondratiev Composite LiFePO4/poly-3,4-ethylenedioxythiophene Cathode for Lithium-Ion Batteries with Low Content of Non-Electroactive Components // International Journal of Electrochemical Science 10 (2015) 8175-8189.
- S. N. Eliseeva, O. V. Levin, E. G. Tolstopyatova, E. V. Alekseeva, V. V. Kondratiev Effect of Addition of a Conducting Polymer on the Properties of the LiFePO4-based Cathode Material for Lithium-Ion Batteries // Russian Journal of Applied Chemistry 88 (2015) 1146-1149.
- E.G. Tolstopjatova, S.N. Eliseeva, A.O. Nizhegorodova, V.V. Kondratiev Electrochemical Properties of Composite Electrodes, Prepared by Spontaneous Deposition of Manganese Oxide into Poly-3,4-ethylendioxythiophene // Electrochimica Acta 173 (2015) 40-49.
- E.G. Tolstopjatova, V.V. Kondratiev, S.N. Eliseeva Multi-layer PEDOT:PSS/Pd composite electrodes for hydrazine oxidation // Journal of Solid State Electrochemistry, 19 (2015) 2951-2959.
- A.O. Nizhegorodova, V.V. Kondratiev, Synthesis and electrochemical properties of composite materials based on poly-3,4-ethylenedioxythiophene with manganese dioxide inclusions // Russ. J. Electrochem. 50 (2014) 510-516.
- V.V. Kondratiev, O.V. Levin, V.V. Malev Charge Transfer and Electrochemical Reactions at Electrodes Modified with Pristine and Metal-Containing Films of Conducting Polymers, in Advances in conducting polymer research // L.Micaelson (Ed), Nova Science Publishers, 2014. P. 79-151.
- V.V. Kondratiev, S.N. Eliseeva, E.G. Tolstopyatova, N.A. Pogulyaychenko, V.V. Malev, Device for extracting precious metals from aqueous solutions // Patent of the Russian Federation No. 83245, 2009.
- V.V. Kondratiev, S.N. Eliseeva, E.G. Tolstopyatova, N.A. Pogulyaychenko, V.V. Malev, A method for extracting precious metals from aqueous solutions and a device for its implementation // Patent of the Russian Federation No. 2404927, 2010.
- V.V. Kondratiev, S.N. Eliseeva, E.G. Tolstopyatova, A.O. Nizhegorodova, Electrochemical cell for the synthesis of nanocomposite materials // Patent of the Russian Federation No. 149730, 2015.
- V.V. Kondratiev, S.N. Eliseeva, E.G. Tolstopyatova, A.O. Nizhegorodova, A way of obtaining nanocomposite materials and a device for its implementation, // Patent of the Russian Federation No. 2568807, 2015.
- V.V. Kondratiev, O.V. Levin, E.G. Tolstopyatova, S.N. Eliseeva, E.V. Alekseeva, Composite cathode material for lithium-ion batteries // Patent of the Russian Federation No. 2584678, 2016.
- Research project of St. Petersburg State University "Development of methods for synthesis of nanocomposite metal-polymer electrode materials and their investigation for the creation of electrocatalytic systems and sensors", 2011-2013.
- RFBR grant No. 13-03-00984 "Synthesis, structure and electrochemical properties of hybrid metal-polymer materials, promising for fuel cells and supercapacitors", 2013-2015.
- RFBR grant No. 14-29-04043 "Composite hybrid materials based on transition metal compounds and conducting polymers for lithium-ion batteries: the role of binders and conductive properties of a polymer in the characteristics of materials," 2014-2016.
- RFBR grant No. 16-03-00457 "Nanocomposite energy-saving materials based on intercalated oxides of transition metals and poly-3,4-ethylenedioxythiophene", 2016-2018.