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Quaternary phosphonium-based (TPQPCl)-ionomer/graphite nanoplatelets composite chemically modified electrodes: a novel platform for sensing applications

Sandra Hernandez Aldave, Robert B. Kaspar, Michael P. Letterio, Afshin Tarat, Yushan Yan, Paolo Bertoncello Orcid Logo

Journal of Materials Chemistry C, Volume: 6, Issue: 48, Pages: 13293 - 13304

Swansea University Authors: Sandra Hernandez Aldave, Paolo Bertoncello Orcid Logo

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DOI (Published version): 10.1039/c8tc04967j

Abstract

Ionomers have attracted considerable interest in electroanalysis due to the possibility of fabricating electrode coatings capable of preconcentrating sub-micromolar concentrations of cations or anions of analytical relevance. In this work, we describe the electroanalytical performances of an ionomer...

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Published in: Journal of Materials Chemistry C
ISSN: 2050-7526 2050-7534
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa45892
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spelling 2023-02-14T16:22:50.4233836 v2 45892 2018-11-12 Quaternary phosphonium-based (TPQPCl)-ionomer/graphite nanoplatelets composite chemically modified electrodes: a novel platform for sensing applications 3c2500b52ca560852fb4b9b1d2cbf4a2 Sandra Hernandez Aldave Sandra Hernandez Aldave true false ad352842aa5fe9c1947bd24ff61816c8 0000-0002-6557-7885 Paolo Bertoncello Paolo Bertoncello true false 2018-11-12 FGSEN Ionomers have attracted considerable interest in electroanalysis due to the possibility of fabricating electrode coatings capable of preconcentrating sub-micromolar concentrations of cations or anions of analytical relevance. In this work, we describe the electroanalytical performances of an ionomer (TPQPCl)/graphite nanoplatelets composite material towards the development of an amperometric sensor for detection of ascorbic acid. Graphite nanoplatelets at different concentrations were dispersed in ethanolic solutions containing TPQPCl. The as-prepared TPQPCl/graphite nanoplatelet-coated electrodes were characterised using Fe(CN)64−/3− as an anionic redox probe. The results evidence the good preconcentration capability of the positively charged TPQPCl towards the incorporation of negatively charged species. By tuning the ionomer/graphite nanoplatelets ratio, it is possible to detect simultaneously ascorbic acid even in the presence of dopamine as an interference species. The TPQPCl/graphite nanoplatelet-coated electrodes were able to detect ascorbic acid in the linear range of 5–10 000 μM with a limit of detection calculated as 4.8 μM using linear sweep voltammetry. Finally, the TPQPCl/graphite nanoplatelet-coated electrodes were tested towards detection of ascorbic acid in vitamin C tablets and orange juice without any sample pretreatment. Journal Article Journal of Materials Chemistry C 6 48 13293 13304 2050-7526 2050-7534 ionomer membranes, sensors 3 12 2018 2018-12-03 10.1039/c8tc04967j COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University RCUK, EP/L013797/1 EPSRC: EP/L013797/1, "Nanostructured Conductive Anion Exchange Composite Thin Films for Electrocatalytic Applications" 2023-02-14T16:22:50.4233836 2018-11-12T10:54:40.9855807 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Sandra Hernandez Aldave 1 Robert B. Kaspar 2 Michael P. Letterio 3 Afshin Tarat 4 Yushan Yan 5 Paolo Bertoncello 0000-0002-6557-7885 6 45892__17788__1d653f6254624a92a909b953b38e5bb5.pdf 45892.pdf 2020-07-25T16:53:40.5659751 Output 3441578 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution 3.0 Unported Licence (CC-BY). true eng http://creativecommons.org/licenses/by/3.0/
title Quaternary phosphonium-based (TPQPCl)-ionomer/graphite nanoplatelets composite chemically modified electrodes: a novel platform for sensing applications
spellingShingle Quaternary phosphonium-based (TPQPCl)-ionomer/graphite nanoplatelets composite chemically modified electrodes: a novel platform for sensing applications
Sandra Hernandez Aldave
Paolo Bertoncello
title_short Quaternary phosphonium-based (TPQPCl)-ionomer/graphite nanoplatelets composite chemically modified electrodes: a novel platform for sensing applications
title_full Quaternary phosphonium-based (TPQPCl)-ionomer/graphite nanoplatelets composite chemically modified electrodes: a novel platform for sensing applications
title_fullStr Quaternary phosphonium-based (TPQPCl)-ionomer/graphite nanoplatelets composite chemically modified electrodes: a novel platform for sensing applications
title_full_unstemmed Quaternary phosphonium-based (TPQPCl)-ionomer/graphite nanoplatelets composite chemically modified electrodes: a novel platform for sensing applications
title_sort Quaternary phosphonium-based (TPQPCl)-ionomer/graphite nanoplatelets composite chemically modified electrodes: a novel platform for sensing applications
author_id_str_mv 3c2500b52ca560852fb4b9b1d2cbf4a2
ad352842aa5fe9c1947bd24ff61816c8
author_id_fullname_str_mv 3c2500b52ca560852fb4b9b1d2cbf4a2_***_Sandra Hernandez Aldave
ad352842aa5fe9c1947bd24ff61816c8_***_Paolo Bertoncello
author Sandra Hernandez Aldave
Paolo Bertoncello
author2 Sandra Hernandez Aldave
Robert B. Kaspar
Michael P. Letterio
Afshin Tarat
Yushan Yan
Paolo Bertoncello
format Journal article
container_title Journal of Materials Chemistry C
container_volume 6
container_issue 48
container_start_page 13293
publishDate 2018
institution Swansea University
issn 2050-7526
2050-7534
doi_str_mv 10.1039/c8tc04967j
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description Ionomers have attracted considerable interest in electroanalysis due to the possibility of fabricating electrode coatings capable of preconcentrating sub-micromolar concentrations of cations or anions of analytical relevance. In this work, we describe the electroanalytical performances of an ionomer (TPQPCl)/graphite nanoplatelets composite material towards the development of an amperometric sensor for detection of ascorbic acid. Graphite nanoplatelets at different concentrations were dispersed in ethanolic solutions containing TPQPCl. The as-prepared TPQPCl/graphite nanoplatelet-coated electrodes were characterised using Fe(CN)64−/3− as an anionic redox probe. The results evidence the good preconcentration capability of the positively charged TPQPCl towards the incorporation of negatively charged species. By tuning the ionomer/graphite nanoplatelets ratio, it is possible to detect simultaneously ascorbic acid even in the presence of dopamine as an interference species. The TPQPCl/graphite nanoplatelet-coated electrodes were able to detect ascorbic acid in the linear range of 5–10 000 μM with a limit of detection calculated as 4.8 μM using linear sweep voltammetry. Finally, the TPQPCl/graphite nanoplatelet-coated electrodes were tested towards detection of ascorbic acid in vitamin C tablets and orange juice without any sample pretreatment.
published_date 2018-12-03T03:57:33Z
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score 10.997956

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