Interfacial segregation

Headed by Professor Viktor A. Safonov (email:

We address the interfacial segregation at the alloy electrodes (the enrichment of their surface with certain components) in the context of the phase diagrams of these alloys.

We compare the kinetics of the spontaneous segregation at the renewable alloy/vacuum and alloy/solution interfaces.

We stady the effect of interfacial  segregation on the kinetics of electrode reactions at alloys, and model the experimentally observed non-steady-state behavior.


electrochemical cell with renewable electrode


Recent publications

  1. A. Safonov, M.A. Choba, “Surface segregation of cadmium atoms at the interface of mechanically renewable Ag- Cd alloy electrode with surface-inactive electrolyte solution”, Russ. J. Electrochem., 51 (2015), p. 703.
  2. V. A. Safonov, M. A. Choba, Yu. K. Aleshin, M. I. Buleev, “Using impedance to study surface segregation on restored electrodes of Ag-Sn and Au-Sn alloys”, Bulletin of the Russian Academy of Sciences: Physics., 78 (2014), p.164.\
  3. V. A. Safonov, M. A. Choba, “Modeling of surface segregation effects observed on renewed electrodes of eutectic alloys”, Z. phys. Chem., 227 (2013), p.1159.
  4. R. A. Manzhos, A. G. Krivenko, S.V. Doronin, M. A. Choba, V. A. Safonov, “Surface segregation of silver atoms on Au-Ag alloys according to data of laser-heating induced temperature potential shifts, XPS and conventional electrochemical methods”,   J. Electroanal. Chem., 704 (2013), p.175.
  5. V. A. Safonov, M. A. Choba, A. G. Krivenko, R. A. Manzhos, Yu. M. Maksimov, “Primary oxidation of Au electrode in weakly acidic solutions of surface-inactive electrolyte as evidenced by the potential shifts induced by laser heating and traditional electrochemical methods”, Electrochim. Acta, 61 (2012), p.140.