MS, Chemical Physics, 1994, Moscow Institute of Physics and Technology, Dolgoprydnyi, Russia Ph.D., Chemical Physics, 1999, University of Minnesota, Minneapolis, MN

Physical Chemistry, Analytical Chemistry, Surface Science, Materials Science, and Environmental Science

The focus of my research program is experimental studies of chemical and physical phenomena at aqueous interfaces. While most of the current knowledge of interfacial physics and chemistry comes from experiments with well defined, static interfaces, a large number of important chemical phenomena occur at surfaces of molecular solids under conditions where such surfaces are dynamic, disordered, and difficult to characterize. A vivid example of such a dynamic interface is the surface of ice at temperatures near 0 ºC. In addition to serving as an excellent model for studies of general properties of molecular solid, ice is also ubiquitous in nature and, therefore, is of great interest for Environmental Science. Over the past four years we have developed of complex research apparatus in our laboratory at the GWU. This unique scientific instrument combines such typical high vacuum techniques as Time-of-Flight Mass Spectrometry and Thermal Desorption Spectroscopy with Ultrafast Microcalorimetry and makes it possible to study desorption, phase transitions, transport phenomena, and reactions in thin (1-2 micrometer) vapor-deposited ice films at temperatures up to 00C. Because of the critical role of ice particles in the atmosphere, the results of these experiments are of great interest to environmental chemistry and studies of climate.

“Water Self-Diffusion in Polycrystalline Ice Doped with SO2 and HCl: Grain Boundary Premelting in the Presence of Ionic and Molecular Impurities”, J. Chem. Phys., will be submitted in Jan. 2008.

“Glass Transition in Doped Amorphous Solid Water: Spatial Extent of Perturbations to Glass Transition Properties Induced by Impurities”, Stephanie A. McCartney, Haiping Lu, and Vlad Sadtchenko, J. Chem. Phys, submitted (2007).

“Temperature Dependence of Water Self-Diffusivity in Pure Polycrystalline Ice and in Ice Doped with HCl”, Stephanie A. McCartney, Haiping Lu and Vlad Sadtchenko, J. Chem. Phys, submitted (2007) PDF

“Response to “Comment on `Glass transition in pure and doped amorphous solid: An ultrafast microcalorimetry study' [J. Chem. Phys. 125, 094501 (2006)]”, Vlad Sadtchenko, Haiping Lu, and S. McCartney, J. Chem. Phys. 127, 157102 (2007)

“Fast Thermal Desorption Spectroscopy Study of H/D Isotopic Exchange Reaction in Polycrystalline Ice near Its Melting Point”, Haiping Lu, Stephanie A. McCartney, and Vlad Sadtchenko, J. Chem. Phys. 127, 184701 (2007) PDF

“Fast Thermal Desorption Spectroscopy and Ultrafast Microcalorimetry: New Tools to Uncover Mysteries of Ice”, Vlad Sadtchenko in "Physics and Chemistry of Ice", Royal Society of Chemistry, Cambridge, UK (2007).

“Fast Thermal Desorption Spectroscopy Study of Morphology and Vaporization Kinetics of Polycrystalline Ice Films”, Haiping Lu, Stephanie A. McCartney, M. Chonde, D. Smyla, and Vlad Sadtchenko, J. Chem. Phys. 125, 044709 (2006) PDF

“Glass Transition in Pure and Doped Amorphous Solid Water: an Ultrafast Microcalorimetry Study”, M. Brindza, M. Chonde, and Vlad Sadtchenko, J. Chem. Phys. 125, 094501(2006) PDF

“The Vaporization Rate of Ice at Temperatures near Its Melting Point”, Vlad Sadtchenko, M. Brindza, M. Chonde, B. Palmore, R. Eom., J. Chem. Phys. 121, 11980 (2004)

P. Conrad, George E. Ewing, and Vlad Sadtchenko, “Ice Nucleation of BaF2 surface”, J. Chem. Phys.,2005, 122 (6), 064709.

George E. Ewing, Michelle Foster, Will Cantrell and Vlad Sadtchenko; “Thin film water on insulator surfaces”, Water in Confined Geometries, eds. V. Buch and J.P. Devlin, Springer-Verlag (2003).

V. Sadtchenko and G.E. Ewing, “A new approach to the study of interfacial melting of ice: infrared spectroscopy”; Can. J. Phys. 2003, 81(1-2): 333.

Sadtchenko, V.; Ewing, G. E.; Nuts D. R.; Stone A., “Instability of Ice Films”, Langmuir 2002, 18, 4632

Sadtchenko, V.; Ewing, G. E., “Interfacial Melting of Thin Ice Films: An Infrared Study”, J. Chem. Phys., 2002, 116, 4686.

Sadtchenko, V.; Conrad, P.; Ewing, G. E., “H2O adsorption on BaF2 (111) at ambient conditions”, J. Chem. Phys.,2002, 116, 4293.

Sadtchenko, V.; Giese, C. F.; Gentry W. R. “Interaction of Hydrogen Chloride with Thin Ice Films: The Effect of Ice Morphology and Evidence for Unique Surface Species on Crystalline Vapor-Deposited Ice”, J. Phys. Chem. B, 2000, 104, 9421.

Sadtchenko, V.; Knutsen, K.; Giese, C. F.; Gentry W. R., “Interactions of CCl4 with Thin D2O Amorphous Ice Films. 2. Variation of Desorption Kinetics with Ice Preparation Conditions and Evidence for Distinct Structures of Low-Density Amorphous Ice”, J. Phys. Chem. B, 2000, 104, 4894.

Sadtchenko, V.; Knutsen, K.; Giese, C. F.; Gentry W. R., “Interactions of CCl4 with Thin D2O Amorphous Ice Films, Part I: A Nanoscale Probe of Ice Morphology”, J. Phys. Chem. B, 2000, 104, 2511.

“Fast thermal desorption spectroscopy and microcalorimetry-new tools to uncover mysteries of ice”, Vlad Sadtchenko, 11th International conference on Physics and Chemistry of Ice, Bremenharven, Germany, July 2006,

“Grain boundary premelting in polycrystalline ice”, S. McCarthy, H. Lu, and Vlad Sadtchenko, Gordon Research Conference- Water and Aqueous Solutions, July 2006, Plymouth, NH