Effect of Ag Addition on the Gas-Sensing Properties of Nanostructured Resistive-Based Gas Sensors: An Overview

Nanostructured semiconducting metal oxides (SMOs) are among the most popular sensing materials for integration into resistive-type gas sensors owing to their low costs and high sensing performances. SMOs can be decorated or doped with noble metals to further enhance their gas sensing properties. Ag...

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Autores principales: Navale, Sachin, Shahbaz, Mehrdad, Mirzaei, Ali, Kim, Sang Sub, Kim, Hyoun Woo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Review
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8513043/
https://www.ncbi.nlm.nih.gov/pubmed/34640775
http://dx.doi.org/10.3390/s21196454
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author Navale, Sachin
Shahbaz, Mehrdad
Mirzaei, Ali
Kim, Sang Sub
Kim, Hyoun Woo
author_facet Navale, Sachin
Shahbaz, Mehrdad
Mirzaei, Ali
Kim, Sang Sub
Kim, Hyoun Woo
author_sort Navale, Sachin
collection PubMed
description Nanostructured semiconducting metal oxides (SMOs) are among the most popular sensing materials for integration into resistive-type gas sensors owing to their low costs and high sensing performances. SMOs can be decorated or doped with noble metals to further enhance their gas sensing properties. Ag is one of the cheapest noble metals, and it is extensively used in the decoration or doping of SMOs to boost the overall gas-sensing performances of SMOs. In this review, we discussed the impact of Ag addition on the gas-sensing properties of nanostructured resistive-based gas sensors. Ag-decorated or -doped SMOs often exhibit better responsivities/selectivities at low sensing temperatures and shorter response times than those of their pristine counterparts. Herein, the focus was on the detection mechanism of SMO-based gas sensors in the presence of Ag. This review can provide insights for research on SMO-based gas sensors.
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spelling pubmed-85130432021-10-14 Effect of Ag Addition on the Gas-Sensing Properties of Nanostructured Resistive-Based Gas Sensors: An Overview Navale, Sachin Shahbaz, Mehrdad Mirzaei, Ali Kim, Sang Sub Kim, Hyoun Woo Sensors (Basel) Review Nanostructured semiconducting metal oxides (SMOs) are among the most popular sensing materials for integration into resistive-type gas sensors owing to their low costs and high sensing performances. SMOs can be decorated or doped with noble metals to further enhance their gas sensing properties. Ag is one of the cheapest noble metals, and it is extensively used in the decoration or doping of SMOs to boost the overall gas-sensing performances of SMOs. In this review, we discussed the impact of Ag addition on the gas-sensing properties of nanostructured resistive-based gas sensors. Ag-decorated or -doped SMOs often exhibit better responsivities/selectivities at low sensing temperatures and shorter response times than those of their pristine counterparts. Herein, the focus was on the detection mechanism of SMO-based gas sensors in the presence of Ag. This review can provide insights for research on SMO-based gas sensors. MDPI 2021-09-27 /pmc/articles/PMC8513043/ /pubmed/34640775 http://dx.doi.org/10.3390/s21196454 Text en © 2021 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
Navale, Sachin
Shahbaz, Mehrdad
Mirzaei, Ali
Kim, Sang Sub
Kim, Hyoun Woo
Effect of Ag Addition on the Gas-Sensing Properties of Nanostructured Resistive-Based Gas Sensors: An Overview
title Effect of Ag Addition on the Gas-Sensing Properties of Nanostructured Resistive-Based Gas Sensors: An Overview
title_full Effect of Ag Addition on the Gas-Sensing Properties of Nanostructured Resistive-Based Gas Sensors: An Overview
title_fullStr Effect of Ag Addition on the Gas-Sensing Properties of Nanostructured Resistive-Based Gas Sensors: An Overview
title_full_unstemmed Effect of Ag Addition on the Gas-Sensing Properties of Nanostructured Resistive-Based Gas Sensors: An Overview
title_short Effect of Ag Addition on the Gas-Sensing Properties of Nanostructured Resistive-Based Gas Sensors: An Overview
title_sort effect of ag addition on the gas-sensing properties of nanostructured resistive-based gas sensors: an overview
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8513043/
https://www.ncbi.nlm.nih.gov/pubmed/34640775
http://dx.doi.org/10.3390/s21196454
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