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

Nargis Anwar; Gordon Armstrong; Fathima Laffir; Calum Dickinson; Mikhail Vagin; Timothy McCormac

doi:10.1016/j.electacta.2017.12.101

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

Nargis Anwar
, Gordon Armstrong
, Fathima Laffir
, Calum Dickinson
, Mikhail Vagin
, Timothy McCormac

Centre for European Studies

Dundalk Institute of Technology
University of Limerick
Linköping University

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	254-258
Number of pages	5
Journal	Electrochimica Acta
Volume	265
DOIs	https://doi.org/10.1016/j.electacta.2017.12.101
Publication status	Published - 1 Mar 2018

Keywords

Polyoxometalate
Room temperature ionic liquid
Voltammetry

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10.1016/j.electacta.2017.12.101

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title = "Redox switching of polyoxometalate-doped polypyrrole films in ionic liquid media",

abstract = "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.",

keywords = "Polyoxometalate, Room temperature ionic liquid, Voltammetry",

author = "Nargis Anwar and Gordon Armstrong and Fathima Laffir and Calum Dickinson and Mikhail Vagin and Timothy McCormac",

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year = "2018",

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doi = "10.1016/j.electacta.2017.12.101",

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T1 - Redox switching of polyoxometalate-doped polypyrrole films in ionic liquid media

AU - Anwar, Nargis

AU - Armstrong, Gordon

AU - Laffir, Fathima

AU - Dickinson, Calum

AU - Vagin, Mikhail

AU - McCormac, Timothy

PY - 2018/3/1

Y1 - 2018/3/1

N2 - 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.

AB - 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.

KW - Polyoxometalate

KW - Room temperature ionic liquid

KW - Voltammetry

UR - https://www.scopus.com/pages/publications/85041457983

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DO - 10.1016/j.electacta.2017.12.101

M3 - Article

AN - SCOPUS:85041457983

SN - 0013-4686

VL - 265

SP - 254

EP - 258

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

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

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Keywords

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