铁胺络合物在悬汞电极上的电化学行为研究  

Study on the electrochemical behavior of iron-amine complex on the hanging mercury drop electrod

作　　者：李冰[1] 郑长征[1] 

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《西安工程大学学报》2008年第6期750-754,共5页Journal of Xi’an Polytechnic University

基　　金：陕西省自然科学基础研究计划项目(2006B11);西安市科技计划项目(CXY08025)

摘　　要：采用循环伏安法研究了电化学还原染色过程中铁胺络合物的电化学行为.结果表明,铁胺络合物在悬汞电极上的电化学还原过程为受扩散控制的准可逆过程,电极上发生单电子转移.加入靛蓝染料后铁胺络合物的电化学还原过程为受吸附控制的准可逆过程,电极上仍发生单电子转移,反应机理为EC机理.The electrochemical behavior of iron-amine complex is studied by the cyclic voltammetry on the hanging mercury drop electrod. The results show that iron-amine complex gets one electron as the redox mediator on the electrod, this is a quasi-reversible diffusion controlled process. After adding the indigo, the electrochemical reduction of the complex is an adsorption controlled process while the electro- chemical oxidation is a diffusion controlled process. And it is a quasi-reversible process which is believed to follow chemical catalysis mechanism （EC）.

关 键 词：电化学行为 悬汞电极 铁胺络合物 靛蓝 

分 类 号：O657.1[理学—分析化学]