利用交流电化学热方法测定了Ｂｒ－／Ｂｒ２和Ｐｂ／Ｐｂ２＋电极的电极反应熵变．在动电位情况下利用该方法研究了聚吡咯电极反应．结果表明经碱溶液处理后聚吡咯电极的电化学活性明显下降，但从交流电化学热性质看，它还部分保留了原先聚吡咯电极的电极反应特性．
The values of entropy change for Br/Br_2 and Pb/Pb~2+ electrode reactions were measured by use of the ac electrochemicalthermal method. The influence of alkaline pretreatment on the electrochemical behavior for a polypyrrole electrode was also investigated by this method. It was found that after alkaline pretreatment the eletrochemical activity of polypyrrole electrode was decreased obviously, but it kept partly electrochemicalthermal characteristic as same as that before pretreatment.
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