通过电化学方法研究酒石酸铅和四丁基溴化铵(TBAB)对锌在KOH溶液中腐蚀行为的影响,提出Pb~(2+)的缓蚀作用机制,并对Pb~(2+)与TBAB的协同缓蚀作用进行讨论。
The influences of lead tartrate and tetrabutylammonium bromide (TBAB) on corrosion of zinc in KOH solutions were studied by using electrochemical techniques. The experimental results showed that the anodic dissolution of zinc and hydrogen evolution were inhibited by the reduction of Pb2+ on the active spots of zinc surface. It was found that TBAB mainly inhibited the anodic reaction by adsorption on some special spots of zinc surface. It was also found that Pb2+ and TBAB had an obvious synergistic effect on the inhibition of the anodic dissolution reaction of zinc. The desorption of these inhibitors from zinc surface was discussed.
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