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- 2015
利用EQCM研究铅电极在硫酸和硫酸钠溶液中的反应机理
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Abstract:
摘要 使用电化学线性扫描伏安(LSV)、循环伏安(CV)和电化学石英晶体微天平(EQCM)方法研究了硫酸和硫酸钠溶液中铅电极表面的反应过程. 伏安曲线和电极表面质量变化结果分析表明，从-1.0 V到-0.4 V正向扫描时，铅在硫酸溶液中生成两种氧化产物，在-0.87 V时生成硫酸铅，在-0.73 V时生成PbO·PbSO4，然后PbO·PbSO4转化成硫酸铅，而铅在硫酸钠中的氧化产物只有硫酸铅. 因此，酸性溶液是PbO·PbSO4形成的必要条件，这进一步揭示了铅酸电池的负极放电机理，也为铅酸电池负极反应过程提供了新的研究方法
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