普通镀铬槽中不溶性阳极的研究 Ⅰ.钛基金属氧化物电极与铅电极性能的比较

普通镀铬槽中不溶性阳极的研究 Ⅰ.钛基金属氧化物电极与铅电极性能的比较 A STUDY OF THE INSOLUBLE ANODES IN CHROMIUM PLATING Ⅰ.The electrochemical characteristics of the electrode of titanium-based with a coating of the metal oxides （modified DSA electrode）as Compared with that of the lead electrode 黄清安 Huang Qingan 1 2 first-author 周元全 Zhou yuanquan 1 2 周运鸿 Zhou yunhong 1 2 陈永言 Chen rougyan 1 2 欧阳贵 Ou Yanggui 1 2 Department of Chemistry wuhan Uuiversity Department of Chemistry wuhan Uuiversity Department of Chemistry, wuhan Uuiversity Department of Chemistry, wuhan Uuiversity Department of Chemistry wuhan Uuiversity Department of Chemistry wuhan Uuiversity 用浸渍试验、稳态极化以及线性扫描循环伏安等试验对改型DSA电极与铅电极在普通镀铬槽中的阳极行为进行比较。其结果是:在镀铬液中,改型DSA电极比铅电极稳定,使用寿命长,槽电压低。但是,采用前者电镀时,镀铬液中三价离子(Cr 3+ )浓度会逐渐上升,而后者能使离子浓度稳定在工艺范围之内。 The study on the electrochemical behaviour of the modified DSA electrode and the lead electrode by immersion test, methods of the polarization curve of steady state and linear sweep voltammetry （LSV） was described. It is showed that the modified DSA electrode is more stable than the lead electrode in solution of chromium plating. The former’s service life is longer than the Iatter’s, the voltage of the former’s cellis lower than the latter’s. Though, The Cr 3+ ion concentration in the former’s condition gradully increaded in solution of chromium plating. In contrast, the Cr 3+ ion concentration in latter’s condition maitained at constant level. 阳极 尺寸稳定阳极 铅电极 镀铬 anode dimensionally stable anode lead chromium plating 1988-04-01 2021-04-01 4