Research Activities of Serguei Lvov

Research Interest Areas:

• Fuel Cells: performance and characterization of proton exchange membrane and solid oxide fuel cells
• Electrochemistry: pH and corrosion studies in high temperature aqueous solutions
• Electrokinetics: nanoelectrophoresis and adsorption at oxide/aqueous solution interface, determination of zeta potential and pH of zero charge in high temperature aqueous systems
• Supercritical Water Oxidation Technology: electrochemical sensors and corrosion studies in high temperature aqueous solutions
• Materials Science: nanostructured proton conductive composite membranes, hydrothermal synthesis of protective coatings; corrosion of alloys in high temperature aqueous environments
• Thermodynamics: electrochemical studies and modeling of thermodynamic properties of high-temperature subcritical and supercritical aqueous solutions

Selected Publications:

Lvov, S.N., Ulmer, G.C., Zhou, X.Y., Barnes, H.L., Macdonald, D.D., Ulyanov, S.M., Benning, L.G., Grandstaff, D.E., Manna, M., and Vicenzi, E., "Progress on Yttria-Stabilized Zirconia Sensors for Hydrothermal pH Measurements," Chemical Geology, 2003, 198/3-4, 141-162.

Zhou, X.Y., Weston, J., Chalkova, E., Lvov, S.N., Hofmann, M., Ambler, C. M., and Allcock, H. R., "High Temperature Transport Properties of Polyphosphazene Membranes for Direct Methanol Fuel Cells," Electrochimica Acta, 2003, 48, 2173-218.

Zhou, X.Y., Wei, X.J., Fedkin, M.V., Strass, K.H., and Lvov, S.N., "A Zetameter for Microelectrophoresis Studies of the Oxide/Water Interface at Temperatures up to 200ºC," Rev. Sci. Instrum., 2003, 74, 2501-2506.

Fedkin, M.V., Zhou, X.Y., Kubicki, J.D., Bandura, A.V., Lvov, S.N., Machesky, M.L., and Wesolowski, D.J., "High Temperature Microelectrophoresis Studies of the Rutile/Aqueous Solution Interface," Langmuir, 2003, 19, 3797-3804.

Seneviratne, D.S., Papangelakis, V. G., Zhou, X.Y., and Lvov, S.N., "Potentiometric pH Measurements in Acidic Sulfate Solutions at 250°C Relevant to Pressure Leaching," Hydrometallurgy, 2003, 68, 131-139.

Zhou, X.Y., Lvov, S.N., and Ulyanov, S.M., “Yttria-Stabilized Zirconia Membrane Electrode,” United States Patent # 6,517,694, February 11, 2003.

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