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Low Platinum-Content Electrocatalysts for Highly Sensitive Detection of Endogenously Released H(2)O(2)
The commercial viability of electrochemical sensors requires high catalytic efficiency electrode materials. A sluggish reaction of the sensor’s primary target species will require a high overpotential and, consequently, an excessive load of catalyst material to be used. Therefore, it is essential to...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9496631/ https://www.ncbi.nlm.nih.gov/pubmed/36140056 http://dx.doi.org/10.3390/bios12090672 |
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author | Morais, Ana Rijo, Patrícia Batanero, Belen Nicolai, Marisa |
author_facet | Morais, Ana Rijo, Patrícia Batanero, Belen Nicolai, Marisa |
author_sort | Morais, Ana |
collection | PubMed |
description | The commercial viability of electrochemical sensors requires high catalytic efficiency electrode materials. A sluggish reaction of the sensor’s primary target species will require a high overpotential and, consequently, an excessive load of catalyst material to be used. Therefore, it is essential to understand nanocatalysts’ fundamental structures and typical catalytic properties to choose the most efficient material according to the biosensor target species. Catalytic activities of Pt-based catalysts have been significantly improved over the decades. Thus, electrodes using platinum nanocatalysts have demonstrated high power densities, with Pt loading considerably reduced on the electrodes. The high surface-to-volume ratio, higher electron transfer rate, and the simple functionalisation process are the main reasons that transition metal NPs have gained much attention in constructing high-sensitivity sensors. This study has designed to describe and highlight the performances of the different Pt-based bimetallic nanoparticles and alloys as an enzyme-free catalytic material for the sensitive electrochemical detection of H(2)O(2). The current analysis may provide a promising platform for the prospective construction of Pt-based electrodes and their affinity matrix. |
format | Online Article Text |
id | pubmed-9496631 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-94966312022-09-23 Low Platinum-Content Electrocatalysts for Highly Sensitive Detection of Endogenously Released H(2)O(2) Morais, Ana Rijo, Patrícia Batanero, Belen Nicolai, Marisa Biosensors (Basel) Review The commercial viability of electrochemical sensors requires high catalytic efficiency electrode materials. A sluggish reaction of the sensor’s primary target species will require a high overpotential and, consequently, an excessive load of catalyst material to be used. Therefore, it is essential to understand nanocatalysts’ fundamental structures and typical catalytic properties to choose the most efficient material according to the biosensor target species. Catalytic activities of Pt-based catalysts have been significantly improved over the decades. Thus, electrodes using platinum nanocatalysts have demonstrated high power densities, with Pt loading considerably reduced on the electrodes. The high surface-to-volume ratio, higher electron transfer rate, and the simple functionalisation process are the main reasons that transition metal NPs have gained much attention in constructing high-sensitivity sensors. This study has designed to describe and highlight the performances of the different Pt-based bimetallic nanoparticles and alloys as an enzyme-free catalytic material for the sensitive electrochemical detection of H(2)O(2). The current analysis may provide a promising platform for the prospective construction of Pt-based electrodes and their affinity matrix. MDPI 2022-08-23 /pmc/articles/PMC9496631/ /pubmed/36140056 http://dx.doi.org/10.3390/bios12090672 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Morais, Ana Rijo, Patrícia Batanero, Belen Nicolai, Marisa Low Platinum-Content Electrocatalysts for Highly Sensitive Detection of Endogenously Released H(2)O(2) |
title | Low Platinum-Content Electrocatalysts for Highly Sensitive Detection of Endogenously Released H(2)O(2) |
title_full | Low Platinum-Content Electrocatalysts for Highly Sensitive Detection of Endogenously Released H(2)O(2) |
title_fullStr | Low Platinum-Content Electrocatalysts for Highly Sensitive Detection of Endogenously Released H(2)O(2) |
title_full_unstemmed | Low Platinum-Content Electrocatalysts for Highly Sensitive Detection of Endogenously Released H(2)O(2) |
title_short | Low Platinum-Content Electrocatalysts for Highly Sensitive Detection of Endogenously Released H(2)O(2) |
title_sort | low platinum-content electrocatalysts for highly sensitive detection of endogenously released h(2)o(2) |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9496631/ https://www.ncbi.nlm.nih.gov/pubmed/36140056 http://dx.doi.org/10.3390/bios12090672 |
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