玻碳电极表面催化性质的薄层光谱电化学研究

Study on the Redox Catalytic Behavior of Graphite Carbon Surface by Spectroelectrochemistry

电位跃-开路驰豫-薄层光谱电化学方法研究了开路情况下,玻碳电极表面对[Fe(CN)6]4-和[(phen)2Cu]2+体系的自身氧化和还原反应的催化作用,获得各体系的催化反应的表观反应速率常数分别为9.02×10-4L/mol/s和1.44×10-3L/mol/s。玻碳电极开路情况下的氧化还原催化性质的研究尚无文献报道。

The redox catalytic behavior of glassy carbon electrode surface to self-reduction of potassium ferricyanide and self-oxidation of copper（ Ⅰ ）-1,10-phenanthroline complex was studied by potentialstep thin layer spectroelectrochemistry with open circuit relaxation. The two reactions follow the first order reaction mechanism with apparent rate constants of 9. 02 × 10^-4 L/mol/s and 1. 44 × 10^-3 L/mol/s,respcctively. This behavior of glassy carbon electrode has no report in the literature before.