锌电极材料的优良缓蚀剂汞有剧毒,以苯并咪唑缓蚀剂取代汞有益于环保。采用失重法、电化学方法等研究了0.1mol/LKOH溶液中苯并咪唑对锌的缓蚀性能。结果表明:苯并咪唑能有效抑制锌的阳极氧化,从而抑制锌在碱液中的自腐蚀,属于阳极型缓蚀剂;当苯并咪唑浓度为10.0mmol/L时缓蚀效果最佳,缓蚀率可达96.68%;苯并咪唑在锌表面的吸附符合Langmuir等温式,属于化学吸咐。
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