Electrochemical reactivity of thin film of plumbagin at ionic liquid | water interface

被引：0

作者：

Nassi, Achille ^{[2
]}

Sop, Sergeot Delor Kungo ^{[2
]}

Leuna, Jules-Blaise Mabou ^{[1
]}

Makota, Suzanne ^{[1
]}

Pengou, Martin ^{[2
]}

Ngameni, Emmanuel ^{[2
]}

机构：

[1] Univ Douala, Fac Sci, Lab Chim Minerale, BP 24157, Douala, Cameroon

[2] Univ Yaounde I, Lab Chim Analyt, Fac Sci, BP 812, Yaounde, Cameroon

来源：

MONATSHEFTE FUR CHEMIE | 2022年 / 153卷 / 7-8期

关键词：

Liquid vertical bar liquid interface; Thin film-modified electrode; Ionic liquid; Plumbagin; Ions pairs; IN-VITRO; REDUCTION; QUINONES; VOLTAMMETRY; DERIVATIVES; BEHAVIOR; HYDROXY; SURFACE;

D O I：

10.1007/s00706-022-02940-w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The electrochemical behavior of plumbagin at the glassy carbon electrode modified by a thin film of tetraoctylphosphonium bromide has been investigated using cyclic and square-wave voltammetry. It was found that the redox transformation of plumbagin gives rise to two dependent systems, I/I' and, II/II', which are monoelectronic and resulting likely, respectively, in the formation of a monoanionic radical end of a dianion radical. The two systems were quasi-reversible. The formation of ion pairs was the main effect governing the observed redox processes and the obtained system was influenced by the scan rate as well as the scan frequency. [GRAPHICS] .

引用

页码：569 / 576

页数：8

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