传输线解析EIS评价含H_2S的复杂缓蚀体系

Evaluation of Inhibitor in Complicated Systems Containing H_2S by Interpreting EIS with CRM

采用传输线模型(CRM)解析电化学阻抗谱(EIS)评价了含H2S的复杂缓蚀体系.结果表明,在固定结构等效电路评价难以奏效时,借助CRM离散参数Ri,可得到缓蚀效率随特征频率变化的丰富信息以及与综合评价一致的结果.实际缓蚀体系大多比较复杂,故本方法具有较大的应用价值.

The electrochemical impedance spectroscopy（EIS） is one of the most important techniques to evaluate the inhibitor efficiency,but the correct analysis is crucial for its application.In this paper,the application of CR transmission line model（CRM） to estimate complicated inhibition system containing H2S in literature is discussed.The result obtained is consistent with other research methods in the above literature in which an equivalent circuit fixed structure is helpless.As most of practical inhibitor systems are involuted,the method proposed here may have an important application.