Electrochemical properties of compacts of nano-and microdisperse diamond powders in aqueous electrolytes

Abstract

The electrochemical behavior of compacts of micro-and nanodisperse diamond powders were studied by using model redox K3[Fe(CN)6]-K4[Fe(CN)6] and Ce(SO4)2-Ce2(SO4)3 systems in aqueous electrolytes. The current-voltage curves for compacts of microdisperse diamonds and the kinetics of reactions on these compacts in a solution of the [Fe(CN)6]3-/4- system are similar to those obtained by using a metal electrode. For nanodisperse diamonds, the same reactions are essentially irreversible.