Sol–gel-derived carbon ceramic composite electrodes bulk-modified with 1:12-silicomolybdic acid

Abstract

1:12-Silicomolybdic acid (SiMo₁₂) doped carbon ceramic composite electrodes were fabricated by incorporating SiMo₁₂ and graphite powder in a methyltrimethoxysilane-based gel and characterized by cyclic and square-wave voltammetry. It was demonstrated that the chemically modified electrodes were suitable for electrocatalytic reduction of bromate. The electrodes had the remarkable advantage of surface renewal owing to bulk modification, as well as simple preparation, good mechanical and chemical stability and reproducibility.