Kalmykov Stepan

E-mail: stepan@radio.chem.msu.ru

Research interests:

  • Radiochemistry
  • Chemical properties of actinides
  • Radionuclides migration in geosphere
  • Determination of radionuclides physico-chemical forms and diagnostic of nuclear materials
  • Element separation methods
  • Radiopharmaceutical chemistry

Research chops:

ORCID ID 0000-0002-2396-4561
WoS ResearcherID Q-9757-2017
Scopus AuthorID 7004328359
IstinaResearcherID 445475


  • 2008 – doctoral thesis in the field 02.00.14 «Radiochemistry». The topic: «The role of colloidal particles in the migration of actinides with groundwater».
  • 2000 – PhD thesis in the field 02.00.14 «Radiochemistry». The topic «Migration of radionuclides through geochemical barriers».
  • 1996 – diploma in chemistry, Chemistry Department, Lomonosov Moscow State University
  • 1991 – certificate of secondary general education, school No. 1243, Moscow.

Academic ranks:

2010 – professor
2016 – corresponding member of Russian Academy of Science in chemistry and material science departments
2019 – dean of the Chemistry Departments in Lomonosov Moscow State University
2020 – scientific council chief of Russian Academy of Science in the field of global ecological problems


  • V.G. Khlopin Prize (2016) – for the series of works “Radiochemical aspects of a closed nuclear fuel cycle and its impact on the environment”
  • Rosatom Award “For contribution to the development of the nuclear industry, 2nd degree” (2014) – for conscientious work, success in research activities, significant contribution to the development of the nuclear industry and in connection with the 85th anniversary of the Chemistry Department of Lomonosov Moscow State University
  • I.I. Shuvalov (2007) Prize – for the series of works “Formation and properties of actinide-containing nanoparticles in application to the safe disposal of radioactive waste and spent nuclear fuel

Editor in journals:

«Radiochimica Acta»

«Solvent Extraction and Ion Exchange»

«Вопросы радиационной безопасности» («Issues of radiation safety”, in Russian)

«Радиохимия» («Radiochemistry”, in Russian)

«Радиоактивные отходы» (“Radioactive waste”, in Russian)

Favorite publications:

  1. A. Krot, I. Vlasova, A. Trigub, A. Averin, V. Yapaskurt, S. Kalmykov. From EXAFS of reference compounds to U(VI) speciation in contaminated environments // Journal of Synchrotron Radiation, 2022, DOI: 10.1107/S1600577521013473
  2. E. Gerber, A.Y. Romanchuk, S. Weiss, A. Kuzenkova, M.O.J.Y. Hunault, S. Bauters, A. Egorov, S.M. Butorin, S.N. Kalmykov, K.O. Kvashnina. To form or not to form: PuO2 nanoparticles at acidic pH // Environmental Science: Nano, 2022, DOI: 10.1039/d1en00666e
  3. A. Romanchuk, A. Trigub, T. Plakhova, A. Kuzenkova, R. Svetogorov, K. Kvashnina, S. Kalmykov. Effective coordination numbers from EXAFS: general approaches for lanthanide and actinide dioxides // Journal of Synchrotron Radiation, 2022, DOI: 10.1107/s160057752101300x
  4. S.V. Gutorova, P.I. Matveev, P.S. Lemport, A.L. Trigub, A.S. Pozdeev, A.V. Yatsenko , B.N. Tarasevich, E.A. Konopkina, E.K. Khult, V.A. Roznyatovsky, Yu.V. Nelyubina, K.L. Isakovskaya, V.N. Khrustalev,V.S. Petrov , A.S. Aldoshin, Yu.A. Ustynyuk, V.G. Petrov, S.N. Kalmykov, V.G. Nenajdenko. Structural Insight into Complexation Ability and Coordination of Uranyl Nitrate by 1,10-Phenanthroline-2,9-diamides // American Chemical Society, 2022, DOI: 10.1021/acs.inorgchem.1c02982
  5. A.K. Rozhkova, N.V. Kuzmenkova, A.M. Sibirtsev, V.G. Petrov, K.L. Shi, X.L. Hou, S.N. Kalmykov. Simultaneous separation of actinides and technetium from large volumes of natural water for their determination // Journal of Radioanalytical and Nuclear Chemistry, 2022, DOI: 10.1007/s10967-022-08274-5
  6. S.A. Kulikova, S.S. Danilov, A.V. Matveenko, A.V. Frolova, K.Y. Belova, V.G. Petrov, S.E. Vinokurov, B.F. Myasoedov. Perspective Compounds for Immobilization of SpentElectrolyte from Pyrochemical Processing of Spent Nuclear Fuel // Applied Sciences, 2021, DOI: 10.3390/app112311180
  7. E. Gerber, A.Yu. Romanchuk, S. Weiss, S. Bauters, B. Schacherl, T. Vitova, R. Hübner, A.S. Shams Aldin, D. Detollenaere, D. Banerjee, S.M. Butorin, S.N. Kalmykov, K.O. Kvashnina. Insight into the structure–property relationship of UO2 nanoparticles // Inorganic chemistry frontiers, 2021, DOI: 10.1039/d0qi01140a
  8. A.K. Rozhkova, N.V. Kuzmenkova, E.A. Pryakhin, Y.G. Mokrov, S.N. Kalmykov. Artificial radionuclides association with bottom sediment components from Mayak Production Association industrial reservoirs // Journal of Environmental Radioactivity, 2021, DOI: 10.1016/j.jenvrad.2021.106569
  9. A.V. Matveenko, A.P. Varlakov, A.A. Zherebtsov, A.V. Germanov, I.V. Mikheev, S.N. Kalmykov, V.G. Petrov. Natural Clay Minerals as a Starting Material for Matrices for the Immobilization of Radioactive Waste from Pyrochemical Processing of SNF // Sustainability, 2021, DOI: 10.3390/su131910780
  10. A.V. Rzhevskaia, A.Yu. Romanchuk, I.E. Vlasova, A.S. Semenkova, A.L. Trigub, R.D. Svetogorov, V.O. Yapaskurt, E.N. Paretskov, S.N. Kalmykov. Partitioning of uranium in contaminated bottom sediments: The meaning of fractionation // Journal of Environmental Radioactivity, 2021, DOI: 10.1016/j.jenvrad.2021.106539
  11. P.I. Matveev, P.K. Mohapatra, S.N. Kalmykov, V.G. Petrov. Solvent extraction systems for mutual separation of Am(III) and Cm(III) from nitric acid solutions. A review of recent state-of-the-art // Solvent Extraction and Ion Exchange, 2021, DOI: 10.1080/07366299.2020.1856998
  12. A. Mitrofanov, N. Andreadi, P. Matveev, G. Zakirova, N. Borisova, S. Kalmykov, V. Petrov. An(III)/Ln(III) solvent extraction: Theoretical and experimental investigation of the role of ligand conformational mobility // Journal of Molecular Liquids, 2020, DOI: 10.1016/j.molliq.2020.115098
  13. A. Mitrofanov, V. Korolev, N. Andreadi, V. Petrov, S. Kalmykov. A Simple Automatized Tool for Exchange-Correlation Functional Fitting // The Journal of Physical Chemistry A: Molecules, Clusters, and Aerosols, 2020, DOI: 10.1021/acs.jpca.9b09093
  14. P.S. Lemport, P.I. Matveev, A.V. Yatsenko, M.V. Evsiunina, V.S. Petrov, B.N. Tarasevich, V.A. Roznyatovsky, P.V. Dorovatovskii, V.N. Khrustalev, S.S. Zhokhov, V.P. Solov’ev, L.A. Aslanov, V.G. Petrov, S.N. Kalmykov, V.G. Nenajdenko, Y.A. Ustyniuk. The impact of alicyclic substituents on the extraction ability of new family of 1,10-phenanthroline-2,9-diamides // RSC advances, 2020, DOI: 10.1039/d0ra05182a
  15. S.A. Kulyukhin, Y.M. Nevolin, V.G. Petrov, S.N. Kalmykov. Volume oxidation of uranium mononitride and uranium monocarbide in the dry NOX-gaseous atmosphere // Radiochimica Acta, 2020, DOI: 10.1515/ract-2019-3125
  16. A.Yu. Romanchuk, I.E. Vlasova, S.N. Kalmykov. Speciation of Uranium and Plutonium From Nuclear Legacy Sites to the Environment: A Mini Review // Frontiers in Chemistry, 2020, DOI: 10.3389/fchem.2020.00630
  17. M.V. Zheltonozhskaya, V.A. Zheltonozhsky, I.E. Vlasova, N.V. Kuzmenkova, S.N. Kalmykov. The plutonium isotopes and strontium-90 determination in hot particles by characteristic X-rays // Journal of Environmental Radioactivity, 2020, DOI: 10.1016/j.jenvrad.2020.106448
  18. N. Boulanger, A.S. Kuzenkova, A. Iakunkov, A. Romanchuk, A.L. Trigub, A.V. Egorov, S. Bauters, L. Amidani, M. Retegan, K.O. Kvashnina, S.N. Kalmykov, A.V. Talyzin. Enhanced sorption of radionuclides by defect-rich graphene oxide // ACS applied materials & interfaces, 2020, DOI: 10.1021/acsami.0c11122 
  19. N. Andreadi, A. Mitrofanov, P. Matveev, A. Volkova, S. Kalmykov. Heavy-Element Reactions Database (HERDB): Relativistic ab Initio Geometries and Energies for Actinide Compounds // Inorganic Chemistry, 2020, DOI: 10.1021/acs.inorgchem.0c01746
  20. A.S. Kuzenkova, A.Y. Romanchuk, A.L. Trigub, K.I. Maslakov, A.V. Egorov, L. Amidani, C. Kittrell, K.O. Kvashnina, J.M. Tour, A.V. Talyzin, S.N. Kalmykov. New insights into the mechanism of graphene oxide and radionuclide interaction // Carbon, 2020, DOI: 10.1016/j.carbon.2019.10.003
  21. E. Gerber, A.Yu Romanchuk., I. Pidchenko, L. Amidani, A. Rossberg, C Hennig., B.M. Gavin Vaughan, A. Trigub, T. Egorova, S. Bauters, T. Plakhova, O.J.Y Myrtille Hunault, S. Weiss, S.M. Butorin, A.C. Scheinost, S.N. Kalmykov, K.O. Kvashnina. The missing pieces of the PuO2 nanoparticle puzzle // Nanoscale, 2020, DOI: 10.1039/d0nr03767b
  22. V.V. Korolev, A. Mitrofanov, E.I. Marchenko, N.N. Eremin, V. Tkachenko, S.N. Kalmykov. Transferable and extensible machine learning derived atomic charges for modeling hybrid nanoporous materials // Chemistry of Materials, 2020, DOI: 1021/acs.chemmater.0c02468
  23. G.Yu Aleshin, B.V. Egorova, A.B. Priselkova, L.S. Zamurueva, S.Yu. Khabirova, A.D Zubenko., V.A. Karnoukhova, O.A. Fedorova, S.N. Kalmykov. Zinc and copper complexes with azacrown ethers and their comparative stability in vitro and in vivo // Dalton Transactions, 2020, DOI: 1039/d0dt00645a
  24. K. Kvashnina, A. Romanchuk, I. Pidchenko, L. Amidani, E. Gerber, A. Trigub, A. Rossberg, S. Weiss, K. Popa, O.Walter, R. Caciuffo, A. Scheinost, S. Butorin, S. Kalmykov. A novel meta‐stable pentavalent plutonium solid phase on the pathway from aqueous Pu(VI) to PuO2 nanoparticles // Angewandte Chemie – International Edition, 2019, DOI: 10.1002/anie.201911637
  25. P.K. Verma, A.S. Semenkova, V.V. Krupskaya, S.V. Zakusin, P.K. Mohapatra, A.Yu. Romanchuk, S.N. Kalmykov. Eu(III) sorption onto various montmorillonites: Experiments and modeling // Applied Clay Science, 2019, DOI: 10.1016/j.clay.2019.03.001
  26. P.I. Matveev, N.E. Borisova, N.G. Andreadi, G.G. Zakirova, V.G. Petrov, E.V. Belova, S.N. Kalmykov, B.F. Myasoedov. First phosphine oxide-based extractant with high Am/Cm selectivity // Dalton Transactions, 2019, DOI: 10.1039/C8DT04729D
  27.  V. Plakhova, A.Yu. Romanchuk, D.V. Likhosherstova, A.E. Baranchikov, P.V. Dorovatovskii, R.D. Svetogorov, T.B. Shatalova, T.B. Egorova, A.L. Trigub, K.O. Kvashnina, V.K. Ivanov, and S.N. Kalmykov. Size effects in nanocrystalline thoria // Journal of Physical Chemistry C, 2019, DOI: 10.1021/acs.jpcc.9b04379
  28. V. Plakhova, A.Yu. Romanchuk, S.M. Butorin, A.D. Konyukhova, A.V. Egorov, A.A. Shiryaev, A.E. Baranchikov, P.V. Dorovatovskii, T. Huthwelker, E. Gerber, S. Bauters, M.M. Sozarukova, A.C. Scheinost, V.K. Ivanov, S.N. Kalmykov, and K.O. Kvashnina. Towards the surface hydroxyl species in CeO2 nanoparticles // Nanoscale, 2019, DOI: 10.1039/C9NR06032D
  29. L. Amidani, T.V. Plakhova, A.Yu. Romanchuk, E. Gerber, S. Weiss, A. Efimenko, C.J. Sahle, S.M. Butorin, S.N. Kalmykov, and K.O. Kvashnina. Understanding the size effects on the electronic structure of ThO2 nanoparticles // Physical Chemistry Chemical Physics, 2019, DOI: 10.1039/C9CP01283D
  30. Б.В. Егорова, О.А. Федорова, С.Н. Калмыков. Катионные радионуклиды и лиганды для таргетных терапевтических радиофармпрепаратов // Russian Chemical Reviews, 2019, DOI: 10.1070/RCR4890
  31. С.З. Вацадзе, О.Е. Еремина,И.А. Веселова, С.Н. Калмыков, В.Г. Ненайденко. 18F-radiopharmaceuticals based on the catecholamine group in the diagnosis of neurodegenerative and neuroendocrine diseases: approaches to synthesis and development prospects // Russian Chemical Reviews, 2018, DOI: 10.1070/RCR4752
  32. Yu. Romanchuk, T.V. Plakhova, A.V. Egorov, T.B. Egorova, P.V. Dorovatovskii, Y.V. Zubavichus, A.A. Shiryaev, and S.N. Kalmykov. Redox-mediated formation of plutonium oxide nanoparticles // Dalton Transactions, 2018, DOI: 10.1039/C8DT02396D
  33. P.I. Matveev, V.G. Petrov, B.V. Egorova, N.N. Senik, A.S. Semenkova, O.V. Dubovaya, A.V. Valkov, S.N. Kalmykov. Solvent extraction of rare earth elements by tri-n-butyl phosphate and tri-iso-amyl phosphate in the presence of Ca(NO3)2 // Hydrometallurgy, 2018, DOI: 10.1016/j.hydromet.2017.12.007
  34. K.I. Maslakov, Y.A. Teterin, A.J. Popel, A.Yu. Teterin, K.E. Ivanov, S.N. Kalmykov, V.G. Petrov, P.K. Petrov, I. Farnan. XPS study of ion irradiated and unirradiated CeO2 bulk and thin film samples // Applied Surface Science, 2018, DOI: 10.1016/j.apsusc.2018.04.077
  35. K.I. Maslakov, Y.A. Teterin, A.J. Popel, A.Yu. Teterin, K.E. Ivanov, S.N. Kalmykov, V.G. Petrov, S. Ross, T.B. Scott, I. Farnan. XPS study of the surface chemistry of UO2 (111) single crystal film // Applied Surface Science, 2018, DOI: 10.1016/j.apsusc.2017.10.019
  36. Y.A. Ustynyuk, S.N. Kalmykov, M. Alyapyshev, V. Babain, H.V. Lavrov, S.S. Zhokhov, P.I. Matveev, I. P. Gloriozov, L.I. Tkachenko, I.G. Voronaev, N.A. Ustynyuk. A novel highly selective ligand for separation of actinides and lanthanides in the nuclear fuel cycle. Experimental verification of the theoretical prediction // Dalton Transactions, 2017, DOI: 10.1039/C7DT01009E
  37. A.J. Popel, V.G. Petrov, V.A. Lebedev, J. Day, S.N. Kalmykov, R. Springell, T.B. Scott, I. Farnan. The effect of fission-energy xe ion irradiation on dissolution of UO2 thin films // Journal of Alloys and Compounds, 2017, DOI: 10.1016/j.jallcom.2017.05.084
  38. K.I. Maslakov, Y.A. Teterin, S.V. Stefanovsky, S.N. Kalmykov, A.Y. Teterin, K.E. Ivanov. XPS study of uranium-containing sodium-aluminum-iron-phosphate glasses // Journal of Alloys and Compounds, 2017, DOI: 10.1016/j.jallcom.2017.04.025
  39. A.S. Sobolev, R.A. Aliev, S.N. Kalmykov. Radionuclides emitting short-range particles and modular nanotransporters for their delivery to target cancer cells // Russian Chemical Reviews, 2016, DOI: 10.1070/RCR4601
  40. V. Plakhova, A.Yu. Romanchuk, S.N. Yakunin, T. Dumas, S. Demir, S. Wang, S.G. Minasian, D.K. Shuh, T. Tyliszczak, A.A. Shiryaev, A.V. Egorov, V.K. Ivanov, and S.N. Kalmykov. Solubility of nanocrystalline cerium dioxide: Experimental data and thermodynamic modeling // Journal of Physical Chemistry C, 2016, DOI: 10.1021/acs.jpcc.6b05650
  41. D.O. Charkin, S.M. Kazakov, S.N. Kalmykov, A.V. Gorbachev, A.N. Kuznetsov, A.Y. Zakharov, Y.A. Teterin, K.I. Maslakov, A.Y. Teterin, K.E. Ivanov. Synthesis and XPS studies of uranium-bearing Aurivillius-derived layered perovskites // Journal of Alloys and Compounds, 2016, DOI: 10.1016/j.jallcom.2016.03.230
  42. Yu.A. Teterin, A.J. Popel, K.I. Maslakov, A.Yu. Teterin, K.E. Ivanov, S.N. Kalmykov, R. Springell, T.B. Scott, I. Farnan. XPS Study of Ion Irradiated and Unirradiated UO2 Thin Films // Inorganic Chemistry, 2016, DOI: 10.1021/acs.inorgchem.6b01184
  43. O.N. Batuk, S.D. Conradson, O.N. Aleksandrova, H. Boukhalfa, B.E. Burakov, D.L. Clark, K.R. Czerwinski, A.R. Felmy, J.S. Lezama-Pacheco, S.N. Kalmykov, D.A. Moore, B.F. Myasoedov, D.T. Reed, D.D. Reilly, R.C. Roback, I.E. Vlasova, S.M. Webb, M.P. Wilkerson. Multiscale Speciation of U and Pu at Chernobyl, Hanford, Los Alamos, McGuire AFB, Mayak, and Rocky Flats // Environmental Science and Technology, 2015, DOI: 10.1021/es506145b
  44. Yu.A. Ustynyuk, N.E. Borisova, V.A. Babain, I.P. Gloriozov, A.Y. Manuilov, S.N. Kalmykov, M.Yu. Alyapyshev, L.I. Tkachenko, E.V. Kenf, N.A. Ustynyuk. N,N′-Dialkyl-N,N′-diaryl-1,10-phenanthroline-2,9-dicarboxamides as donor ligands for separation of rare earth elements with a high and unusual selectivity. DFT computational and experimental studies // Chemical Communications, 2015, DOI: 10.1039/c5cc01620g
  45. S.N. Kalmykov, I.E. Vlasova, A.Yu. Romanchuk, E.V. Zakharova, A.G. Volkova, I.A. Presnyakov. Partitioning and speciation of Pu in the sedimentary rocks aquifer from the deep liquid nuclear waste disposal // Radiochimica Acta, 2015, DOI: 10.1515/ract-2014-2344
  46. A.P. Novikov, S.N. Kalmykov , S. Utsunomiya, R.C. Ewing, F. Horreard, A. Merkulov, S.B. Clark, V.V. Tkachev, B.F. Myasoedov. Colloid Transport of Plutonium in the Far-Field of the Mayak Production Association, Russia // Science, 2006, DOI: 10.1126/science.1131307
  47. A.Yu. Romanchuk, A.S. Slesarev, S.N. Kalmykov, D.V. Kosynkin, J.M. Tour. Graphene oxide for effective radionuclide removal // Physical Chemistry Chemical Physics, 2013, DOI: 10.1039/C2CP44593J
  48. S.N. Kalmykov and G.R. Choppin. Mixed Ca2+/UO22+/CO32- complex formation at different ionic strengths // Radiochimica Acta, 2009, DOI: 10.1524/ract.2000.88.9-11.603
  49. A.Yu. Romanchuk, S.N. Kalmykov, R.A. Aliev. Plutonium sorption onto hematite colloids at femto- and nanomolar concentrations // Radiochimica Acta, 2011, DOI: 1524/ract.2011.1808
  50. S.V. Ermolaev, B.L. Zhuikov, V.M. Kokhanyuk, V.L. Matushko, S.N. Kalmykov, R.A. Aliev, I.G. Tananaev, B.F. Myasoedov. Production of actinium, thorium and radium isotopes from natural thorium irradiated with protons up to 141 MeV // Radiochimica Acta, 2012, DOI: 10.1524/ract.2012.1909