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用循环伏安法研究了碘化四(4-三甲基苯胺)卟啉合钴催化CO_2电还原体系。考察了体系受CO_2压力和有机碱的影响以及对扫描速度变化的响应情况。证明了-1.2V(vs SCE)还原峰为CO_2CO(Ⅰ)TMAPH-还原峰,CO_2催化电还原经历配位活化过程。
Cyclic voltammetry was used to study the CO 2 reduction system catalyzed by tetrakis (4-trimethylaniline) porphyrin iodide. The influence of CO 2 pressure and organic base and the response to the change of scanning speed were investigated. It was proved that the reduction peak of -1.2V (vs SCE) was TMAPH-reduction peak of CO_2CO (Ⅰ), and CO 2 catalytic electro-reduction underwent the coordination activation process.