光谱电化学研究——镀汞镍网薄层电极上茜素红 S 的还原反应

Study of Spectroelectrochemistry—Study on Reduction of Alizarin Red S With Mercury Film Nickel Minigrid Electrode

本文叙述了用电沉积一层汞到镍网上,制得镀汞镍网光透薄层电极的方法。在pH为7的磷酸盐介质中,用薄层光谱电化学方法研究了茜素红S在该电极上的还原反应,通过一系列电位变化的Nernst图测得式电极电位E°′和电子转移数n。

An optically transparent thin layer cell has been prepared by electrochemically depositing a thin film of mercury onto nickel minigrid. At this nickel minigrid electrode the reduction of alizarin red S has been investigated in phosphate buffer solution at pH 7 by UV-VIS spectroscopy technique. The formal potential E°＇and the electron transfer number n were determined from a Nernstian plot for a series of applied potentials.