普通镀铬槽中不溶性阳极的研究 Ⅱ.钛基金属氧化物电极与铅电极上三价铬离子氧化过程的研究

普通镀铬槽中不溶性阳极的研究 Ⅱ.钛基金属氧化物电极与铅电极上三价铬离子氧化过程的研究 A STUDY OF THE INSOLUBLE ANODES IN CHROMIUM PLATING Ⅱ. The study of the oxiditon reaction of chromium（Ⅲ） ions on the modified DSA electrode and lead electrode 周元全 Zhou Yuanquan first-author 黄清安 Huang Qingan 欧阳贵 Ou Yanggul 本文用测量稳态极化曲线,对镀液中Cr +3 离子浓度变化的分析以及镀铬过程中析出气体的化学、紫外光谱分析等试验比较了改型DSA电极与PbOt电极对Cr 3+ 离子氧化的催化活性的大小,查明了PbO 2 电极对Cr +3 离子氧化有很好的催化作用的原因:是电镀时,在PbO 2 电极上产生的臭氧量比改型DSA电极多。 This paper deal with the oxidition reaction of chromium（Ⅲ） ions on the modified DSA electrode and lead electrode with the methods of polarization curve of steady state, Chemical analysis and the ultra—violet absorption spectrometry. It has been found that the PbO 2 electrode has good catalytic activity for the oxidation of Chromium（Ⅲ）ions. The results caused by the quantity of ozone produced on the PbO 2 electrode is more than that on the modified DSA electrode. 阳极 不溶性阳极 PbO2电极 Cr3+离子的氧化 臭氧 anode dimensionally stable anodes oxidition of chromium（Ⅲ） ions lead dioxide electrode ozone 1989-01-01 2021-04-01 1