Keggin结构过渡金属取代硼钨酸盐的电化学及电催化还原

Electrochemical behavior and electrocatalytic reduction of the Keggin-type transition metal substitute tungstoborate anions

采用循环伏安法,研究了Keggin结构过渡金属取代硼钨酸盐K7[MBW11(H2O)O39].H2O(简写为MBW11,M=Cu,Co,Ni)的电化学性质及电催化活性.结果表明,CuBW11在水溶液中表现出较为特殊的电化学性质,MBW11(M=Cu,Co,Ni)对亚硝酸根及碘酸根离子的还原反应具有较好的催化作用,取代金属对该体系的电催化活性有很大影响.

The Electrochemical behavior and the catalytic activities to the reduction of K7[MBW11（H2O）O39]· H2O（MBW11, M= Cu, Co, Ni） has been studied using cyclic voltammetry. The results indicate that CuBW11 exhibits especial electrochemical properties in aqueous solution. The catalytic reactions to reduction of the NO2^- and IO3^- have been investigated. The substitute metal has a great affect on the electrocatalytic activities in the system.