Electrochemical Dechlorination of Chloroform on Single Crystal Electrodes of Silver in Acetonitrile

Abstract

Structural effects on dechlorination of chloroform (CHCl₃) have been studied on the low index planes of Ag in acetonitrile using macro electrolysis. All the electrodes produce methane (CH₄). Partial current density of methane depends on crystal orientation at −1.83 V (Fc/Fc⁺) remarkably: Ag(100)<Ag(111)<Ag(110). No structural effect is obtained at −2.58 V (Fc/Fc⁺). The potential dependence of the structural effect is discussed according to a film formation on the surfaces during the electrolysis.