A binder‐free composite of graphite and kaolinite as a stable working electrode for general electrochemical applications

Abstract Composite electrodes are essential to overcome dynamic challenges related to electrodes made of polymeric binders. Herein, this work reports a composite electrode consisting of graphite and kaolinite (GKCE) as a potential alternative for commercial electrodes. The GKCE series exhibits expon...

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Autores principales:	Kohobhange S. P. Karunadasa, Dananjali Rathnayake, Chinthan Manoratne, Amarasooriya Pitawala, Gamini Rajapakse
Formato:	article
Lenguaje:	EN
Publicado:	Wiley-VCH 2021
Materias:	Clay Composite electrode Conducting materials Electrochemistry Graphite Industrial electrochemistry TP250-261 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/afcf9fc6012e4985a613f74a4478549d
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spelling	oai:doaj.org-article:afcf9fc6012e4985a613f74a4478549d2021-11-23T18:05:26ZA binder‐free composite of graphite and kaolinite as a stable working electrode for general electrochemical applications2698-597710.1002/elsa.202100003https://doaj.org/article/afcf9fc6012e4985a613f74a4478549d2021-11-01T00:00:00Zhttps://doi.org/10.1002/elsa.202100003https://doaj.org/toc/2698-5977Abstract Composite electrodes are essential to overcome dynamic challenges related to electrodes made of polymeric binders. Herein, this work reports a composite electrode consisting of graphite and kaolinite (GKCE) as a potential alternative for commercial electrodes. The GKCE series exhibits exponential decay in resistivity parallel to the linear increase in mechanical strength depending on the relative strength of the unique lamella‐like graphite structure when going from low to high graphite percentage. GKCE with 80% graphite employed as the model working electrode for analyte detection and electropolymerization. GKCE can produce a typical voltammogram response with a narrow potential range and highest sensitivity (1.2 A m/mol) towards the analyte (Fe2+/Fe3+) compared to commercial working electrodes. Electropolymerization with GKCE leads to a polyaniline network consisting of nanofibers with the lowest charge transfer resistance of 403 Ω. GKCE is a potential low‐cost electrode for general electrochemical applications in comparison with expensive commercial working electrodes.Kohobhange S. P. KarunadasaDananjali RathnayakeChinthan ManoratneAmarasooriya PitawalaGamini RajapakseWiley-VCHarticleClayComposite electrodeConducting materialsElectrochemistryGraphiteIndustrial electrochemistryTP250-261ChemistryQD1-999ENElectrochemical Science Advances, Vol 1, Iss 4, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Clay Composite electrode Conducting materials Electrochemistry Graphite Industrial electrochemistry TP250-261 Chemistry QD1-999
spellingShingle	Clay Composite electrode Conducting materials Electrochemistry Graphite Industrial electrochemistry TP250-261 Chemistry QD1-999 Kohobhange S. P. Karunadasa Dananjali Rathnayake Chinthan Manoratne Amarasooriya Pitawala Gamini Rajapakse A binder‐free composite of graphite and kaolinite as a stable working electrode for general electrochemical applications
description	Abstract Composite electrodes are essential to overcome dynamic challenges related to electrodes made of polymeric binders. Herein, this work reports a composite electrode consisting of graphite and kaolinite (GKCE) as a potential alternative for commercial electrodes. The GKCE series exhibits exponential decay in resistivity parallel to the linear increase in mechanical strength depending on the relative strength of the unique lamella‐like graphite structure when going from low to high graphite percentage. GKCE with 80% graphite employed as the model working electrode for analyte detection and electropolymerization. GKCE can produce a typical voltammogram response with a narrow potential range and highest sensitivity (1.2 A m/mol) towards the analyte (Fe2+/Fe3+) compared to commercial working electrodes. Electropolymerization with GKCE leads to a polyaniline network consisting of nanofibers with the lowest charge transfer resistance of 403 Ω. GKCE is a potential low‐cost electrode for general electrochemical applications in comparison with expensive commercial working electrodes.
format	article
author	Kohobhange S. P. Karunadasa Dananjali Rathnayake Chinthan Manoratne Amarasooriya Pitawala Gamini Rajapakse
author_facet	Kohobhange S. P. Karunadasa Dananjali Rathnayake Chinthan Manoratne Amarasooriya Pitawala Gamini Rajapakse
author_sort	Kohobhange S. P. Karunadasa
title	A binder‐free composite of graphite and kaolinite as a stable working electrode for general electrochemical applications
title_short	A binder‐free composite of graphite and kaolinite as a stable working electrode for general electrochemical applications
title_full	A binder‐free composite of graphite and kaolinite as a stable working electrode for general electrochemical applications
title_fullStr	A binder‐free composite of graphite and kaolinite as a stable working electrode for general electrochemical applications
title_full_unstemmed	A binder‐free composite of graphite and kaolinite as a stable working electrode for general electrochemical applications
title_sort	binder‐free composite of graphite and kaolinite as a stable working electrode for general electrochemical applications
publisher	Wiley-VCH
publishDate	2021
url	https://doaj.org/article/afcf9fc6012e4985a613f74a4478549d
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A binder‐free composite of graphite and kaolinite as a stable working electrode for general electrochemical applications

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