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研究论文

Br~-对(TPP)Co电化学氧化还原行为影响研究

  • 严川伟
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  • 中国科学院金属腐蚀与防护研究所金属腐蚀与防护国家重点实验室,中国科学技术大学化学系

收稿日期: 1998-11-28

  修回日期: 1998-11-28

  网络出版日期: 1998-11-28

Electrochemical Investigation of Effect of Br - on Redox Behavior of (TPP)Co

  • Yan Chuanwei  Lin Haichao
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  • (State Key Lab. for Corrosion and Prot., Inst. of Corr. and Prot. of Metals, Chinese Acad.of Sci., Shenyang 110015) Lin Xiangqin (Dept. of Chem., Univ. of Sci. and Tec. of China, Hefei 230026)$$$

Received date: 1998-11-28

  Revised date: 1998-11-28

  Online published: 1998-11-28

摘要

用微电极和薄层循环伏安(CV)技术研究了Br-对四苯基钴卟啉((TPP)Co)在1,2_二氯乙烷(DCE)中电化学行为的影响.发现在较高电位下,两个Br-轴向配位的(TPP)Co(II)(Br-)2其一个Br-发生脱落表现出(TPP)Co(II)(Br-)的行为特征,这被证明是Br-的氧化所致.证明了(TPP)Co(II)(Br-)在约0.12V(SCE)处还原,而(TPP)Co(II)(Br-)2则在大约Co(I)/Co(I)还原过程出现的更负的电位处发生还原

本文引用格式

严川伟 . Br~-对(TPP)Co电化学氧化还原行为影响研究[J]. 电化学, 1998 , 4(4) : 388 -393 . DOI: 10.61558/2993-074X.2709

Abstract

The effect of Br - anion on electrochemical behavior of (TPP)Co was investigated in 1,2 dichloroethane solution by microelectrode and thin layer cyclic voltammetry technique. It was found that the axially coordination of one Br - anion to (TPP)Co(Ⅲ)(Br -) 2 shifts the potential of porphyrin system to more positive value. The reduction peak of 0.12 V(vs.SCE) is attributed to the reduction of (TPP)Co(Ⅲ)(Br -). It is also postulated that the reduction of (TPP)Co(Ⅲ)(Br -) 2 occurred at a more negative potential where the reduction of the Co(Ⅱ)/Co(Ⅰ) process happened.

参考文献

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