Redox switching of polyoxometalate-doped polypyrrole films in ionic liquid media

被引：5

作者：

Anwar, Nargis ^{[1
]}

Armstrong, Gordon ^{[2
]}

Laffir, Fathima ^{[2
]}

Dickinson, Calum ^{[2
]}

Vagin, Mikhail ^{[3
,4
]}

McCormac, Timothy ^{[1
]}

机构：

[1] Dundalk Inst Technol, Dept Appl Sci, Electrochem Res Grp, Dublin Rd, Dundalk, County Louth, Ireland

[2] Univ Limerick, Bernel Inst, Limerick, Ireland

[3] Linkoping Univ, Dept Phys Chem & Biol, SE-58183 Linkoping, Sweden

[4] Linkoping Univ, Dept Sci & Technol, Lab Organ Elect, SE-60174 Norrkoping, Sweden

来源：

ELECTROCHIMICA ACTA | 2018年 / 265卷

关键词：

Room temperature ionic liquid; Polyoxometalate; Voltammetry; REDUCTION; IMMOBILIZATION; PHOTOCHROMISM; ELECTRODES; CHEMISTRY; ANIONS; SALTS; ACID;

D O I：

10.1016/j.electacta.2017.12.101

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The surface immobilization of the parent Dawson polyoxometalate (POM) as a counter-ion for the electropolymerization of polypyrrole (PPy) or as an electrode-adhered solid was utilized for voltammetric studies of the surface adhered POM in room temperature ionic liquids (RTIL). Illustrating the efficiency of intermediate stabilization, voltammetry at POM-modified electrodes in a PF6-based RTIL revealed richer redox behaviour and higher stabilization in comparison with aqueous electrolytes and with BF4-based RTIL, respectively. High stability of the POM-doped PPy towards continuous charge-discharge voltammetric redox cycles was confirmed by minor changes in film morphology observed after the cycling in RTILs. (c) 2017 Elsevier Ltd. All rights reserved.

引用

页码：254 / 258

页数：5

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