个人简介

Chemistry Communication Emergent Investigator (2015) ACS Solid-State Materials Chemistry Emergent Investigator (2014) Young Chemists highlighted in Chemistry - A European Journal (2014) ACS YCC Leadership Development Award (2013) NSF REU Chemistry Leadership Group Award (2013) ACS Chemistry Ambassador (2013) Appointed to faculty, UC Davis (2011) Postdoctoral Fellow, Florida State University (2008-2011) Postdoctoral Fellow, Fritz-Haber-Institute of Max-Planck Society, Berlin (2007-2008) Postdoctoral Fellow, Max-Planck-Institute for Chemical Physics of Solids, Dresden (2005-2007) Ph.D. Moscow State University (2004) M.S., B.S. Moscow State University (2001)

研究领域

Inorganic Chemistry/Materials Chemistry

Research in our group is focused on exploring novel materials for energy generation, conversion, and storage. In particular, we are interested but not limited to thermoelectric materials, Li-ion batteries, and photocatalysts. Understanding the structure-property relationship is a key to the rational design of such materials. We are using various techniques of inorganic and solid state chemistry for the synthesis of new materials and characterization of their functional properties. Optimization of material’s performance is achieved on the microscale by tailoring atomic arrangements and chemical bonding in the crystal structure, and on the macroscale by varying particles size, shape, and chemical composition of the surface. Graduate and undergraduate students who join our group will be exposed to a variety of techniques for synthesis and characterization of solid state inorganic materials.

近期论文

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Lee, K.; Kaseman, D.; Sen, S.; Hung, I.; Gan, Z.; Gerke, B.; Pottgen, R.; Feygenson, M.; Neuefeind, J.; Lebedev, O.I.; Kovnir, K. Intricate short-range ordering and strongly anisotropic transport properties of Li1-xSn2+xAs2. J. Amer. Chem. Soc. 2015, DOI: 10.1021/jacs.5b00237. Greenfield, J.T.; Kamali, S.; Lee, K.; Kovnir, K. A Solution for Solution-Produced β-FeSe: Elucidating and Overcoming Factors that Prevent Superconductivity. Chem. Mater. 2015, 27, 588-596. Greenfield, J.T.; Pak, C.; Kamali, S.; Lee, K.; Kovnir, K. Control over Connectivity and Magnetism of Tetrahedral FeSe2 Chains through Coordination Fe-Amine Complexes. Chem. Commun. 2015, DOI: 10.1039/C4CC08608B. Wang, J.; Lee, K.; Kovnir, K. Distorted phosphorus and copper square-planar layers in LaCu1+xP2 and LaCu4P3: synthesis, crystal structure, and physical properties. Inorg. Chem. 2015, 54, 890-897. Kaseman, D.C.; Hung, I.; Lee, K.; Kovnir, K.; Gan, Z.; Aitken, B.G.; Sen, S. Tellurium Speciation, Connectivity and Chemical Order in AsxTe100-x Glasses: Results from Two-Dimensional 125Te NMR Spectroscopy. J. Phys. Chem. B 2015, 119, 2081-2088. Hu, Y.; Wang, J.; Kawamura, A.; Kovnir, K.; Kauzlarich, S.M. Yb14MgSb11 and Ca14MgSb11 - New Mg-Containing Zintl Compounds and Their Structures, Bonding and Thermoelectric Properties. Chem. Mater. 2015, 27, 343-351. Lee, K.; Synnestvedt, S.; Bellard, M.; Kovnir, K. GeP and (Ge1-xSnx)(P1-yGey) (x = 0.12, y = 0.05): Synthesis, structure, and properties of two-dimensional layered tetrel phosphides. J. Solid State Chem. 2015, 224, 62-70. Invited Paper: 2D Materials Special Issue. Shevelkov, A.V.; Kovnir K.; Zaikina J.V. Chemistry and Physics of Inverse (Cationic) Clathrates and Tin Anionic Clathrates. In The Physics and Chemistry of Inorganic Clathrates. Ed. Nolas, G.S. Springer, 2014, 125-167. Dolyniuk, J.; Kaseman, D.; Sen, S.; Zhao, J.; Osterloh, F.E.; Kovnir, K. mP-BaP3: A New Phase from an Old Binary System. Chem. Europ. J. 2014, 20, 10829-10837. Invited Paper: Young Chemists Special Issue. Kolen'ko, Y.V.; Banobre-Lopez, M.; Rodriguez-Abreu, C.; Carbo-Argibay, E.; Deepak, L.F.;Petrovykh, D.Y.; Cerqueira, M.F.G.; Kamali, S.; Kovnir, K.; Shtansky, D.V.; Lebedev, O.I.; Rivas, J. High-Temperature Magnetism as a Probe for Structural and Compositional Uniformity in Ligand-capped Magnetite Nanoparticles. J. Phys. Chem. C 2014, 118, 28322-28329. Kolen'ko, Y.V.; Banobre-Lopez, M.; Rodriguez-Abreu, C.; Carbo-Argibay, E.; Sailsman, A.; Pineiro-Redondo, Y.; Cerqueira, M.F.G.; Petrovykh, D.Y.; Kovnir, K.; Lebedev, O.I.; Rivas, J. Large-Scale Synthesis of Colloidal Fe3O4 Nanoparticles Exhibiting High Heating Efficiency in Magnetic Hyperthermia. J. Phys. Chem. C 2014, 118, 8691-8701. Greenfield, J.T.; Kamali, S.; Izquierdo, N.; Chen, M.; Kovnir, K. NH4FeCl2(HCOO): Synthesis, Structure, and Magnetism of a Novel Low-Dimensional Magnetic Material. Inorg. Chem. 2014, 53, 3162-3169. Pak, C.; Kamali, S.; Pham, J.; Lee, K.; Greenfield, J.T.; Kovnir, K. Chemical Excision of Tetrahedral FeSe2 Chains from the Superconductor FeSe: Synthesis, Crystal Structure, and Magnetism of Fe3Se4(en)2. J. Amer. Chem. Soc. 2013, 135, 19111-19114. Dolyniuk, J.; Kovnir, K. Zintl Salts Ba2P7X (X = Cl, Br, and I): Synthesis, Crystal, and Electronic Structure. Crystals, 2013, 3, 431-442. Fulmer, J.; Lebedev, O.I.; Roddatis, V.V.; Kaseman, D.; Sen, S.; Dolyniuk, J.; Lee, K.; Olenev, A.V.; Kovnir, K. Clathrate Ba8Au16P30: The "Gold Standard" for Lattice Thermal Conductivity. J. Amer. Chem. Soc. 2013, 135, 12313-12323. Fulmer, J.; Kaseman, D.; Dolyniuk, J.; Lee, K.; Sen, S.; Kovnir, K. BaAu2P4: Layered Zintl Polyphosphide with Infinite (P-) Chains. Inorg. Chem. 2013, 52, 7061-7067. Cooke, K.; Olenev, A.V.; Kovnir, K. Tris(ethylenediamine)cobalt(II) dichloride. Acta Cryst. E 2013, E69, m332. Schmidt, M.; Kovnir, K.; Deichsel, J.; Binnewies, M.; Grin, Yu. Armbruster, M. Fest/Gas-Reaktion zur Darstellung von getragerten intermetallischen Ga-Pd Katalysatormaterialien. Z. Anorg. Allgem. Chem. 2015, accepted. Hietsoi, O.; Dunk, P. W.; Stout, H. D.; Arroyave, A.; Kovnir, K.; Irons, R. E.; Kassenova, N.; Yerkassov, R.; Achim, C.; Shatruk, M. Spin crossover in tetranuclear Fe(II) complexes, {[(tpma)Fe(m-CN)]4}X4 (X = ClO4-, BF4-). Inorg. Chem. 2014, 53, 13070-13077. Lampen, P.; Phan, M. H.; Srikanth, H.; Kovnir, K.; Chai, P.; Shatruk, M. Heisenberg-like ferromagnetism in 3d-4f intermetallic La0.75Pr0.25Co2P2 with localized Co moments. Phys. Rev. B 2014, 90, 174404.