Polypyrrole entrapped 18-molybdodisulphate anion for the detection of hydrogen peroxide

Mustansara Yaqub; James Walsh; Fathima Laffir; Paula Olstoorn; Lekshmi Kailas; Robert Forster; Tia E. Keyes; Mikhail Vagin; Timothy McCormac

doi:10.1016/j.electacta.2018.08.053

Polypyrrole entrapped 18-molybdodisulphate anion for the detection of hydrogen peroxide

Mustansara Yaqub, James Walsh, Fathima Laffir, Paula Olstoorn, Lekshmi Kailas, Robert Forster, Tia E. Keyes, Mikhail Vagin, Timothy McCormac

Bernal Institute

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

Abstract

Dawson-type 18-molybdodisulphate anion [S₂Mo₁₈O₆₂]^4-has been immobilized within polypyrrole film by means of electrochemical polymerization. The polymer modified electrodes have been characterized with voltammetry and surface based techniques. The noticeable change in electrochemical properties of [S₂Mo₁₈O₆₂]^4- has been observed with immobilization, which is favours its electrocatalytic performance. Hydrogen peroxide reduction in neutral pH as a standard system for electrocatalytic properties assessment has been studied on composite film-modified electrodes and showed the sensitivity of 127 mAM⁻¹cm⁻². Developed system showed high stabilities towards redox switching and peroxide reduction.

Original language	English
Pages (from-to)	78-86
Number of pages	9
Journal	Electrochimica Acta
Volume	287
DOIs	https://doi.org/10.1016/j.electacta.2018.08.053
Publication status	Published - 10 Oct 2018

Keywords

18-Molybdodisulphate
Hydrogen peroxide catalysis
Polypyrrole

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10.1016/j.electacta.2018.08.053

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title = "Polypyrrole entrapped 18-molybdodisulphate anion for the detection of hydrogen peroxide",

abstract = "Dawson-type 18-molybdodisulphate anion [S2Mo18O62]4-has been immobilized within polypyrrole film by means of electrochemical polymerization. The polymer modified electrodes have been characterized with voltammetry and surface based techniques. The noticeable change in electrochemical properties of [S2Mo18O62]4- has been observed with immobilization, which is favours its electrocatalytic performance. Hydrogen peroxide reduction in neutral pH as a standard system for electrocatalytic properties assessment has been studied on composite film-modified electrodes and showed the sensitivity of 127 mAM−1cm−2. Developed system showed high stabilities towards redox switching and peroxide reduction.",

keywords = "18-Molybdodisulphate, Hydrogen peroxide catalysis, Polypyrrole",

author = "Mustansara Yaqub and James Walsh and Fathima Laffir and Paula Olstoorn and Lekshmi Kailas and Robert Forster and Keyes, {Tia E.} and Mikhail Vagin and Timothy McCormac",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2018",

month = oct,

day = "10",

doi = "10.1016/j.electacta.2018.08.053",

language = "English",

volume = "287",

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journal = "Electrochimica Acta",

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TY - JOUR

T1 - Polypyrrole entrapped 18-molybdodisulphate anion for the detection of hydrogen peroxide

AU - Yaqub, Mustansara

AU - Walsh, James

AU - Laffir, Fathima

AU - Olstoorn, Paula

AU - Kailas, Lekshmi

AU - Forster, Robert

AU - Keyes, Tia E.

AU - Vagin, Mikhail

AU - McCormac, Timothy

PY - 2018/10/10

Y1 - 2018/10/10

N2 - Dawson-type 18-molybdodisulphate anion [S2Mo18O62]4-has been immobilized within polypyrrole film by means of electrochemical polymerization. The polymer modified electrodes have been characterized with voltammetry and surface based techniques. The noticeable change in electrochemical properties of [S2Mo18O62]4- has been observed with immobilization, which is favours its electrocatalytic performance. Hydrogen peroxide reduction in neutral pH as a standard system for electrocatalytic properties assessment has been studied on composite film-modified electrodes and showed the sensitivity of 127 mAM−1cm−2. Developed system showed high stabilities towards redox switching and peroxide reduction.

AB - Dawson-type 18-molybdodisulphate anion [S2Mo18O62]4-has been immobilized within polypyrrole film by means of electrochemical polymerization. The polymer modified electrodes have been characterized with voltammetry and surface based techniques. The noticeable change in electrochemical properties of [S2Mo18O62]4- has been observed with immobilization, which is favours its electrocatalytic performance. Hydrogen peroxide reduction in neutral pH as a standard system for electrocatalytic properties assessment has been studied on composite film-modified electrodes and showed the sensitivity of 127 mAM−1cm−2. Developed system showed high stabilities towards redox switching and peroxide reduction.

KW - 18-Molybdodisulphate

KW - Hydrogen peroxide catalysis

KW - Polypyrrole

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U2 - 10.1016/j.electacta.2018.08.053

DO - 10.1016/j.electacta.2018.08.053

M3 - Article

AN - SCOPUS:85052463106

SN - 0013-4686

VL - 287

SP - 78

EP - 86

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Polypyrrole entrapped 18-molybdodisulphate anion for the detection of hydrogen peroxide

Abstract

Keywords

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