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Recent Advances in ZnO-Based Carbon Monoxide Sensors: Role of Doping
Monitoring and detecting carbon monoxide (CO) are critical because this gas is toxic and harmful to the ecosystem. In this respect, designing high-performance gas sensors for CO detection is necessary. Zinc oxide-based materials are promising for use as CO sensors, owing to their good sensing respon...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8272168/ https://www.ncbi.nlm.nih.gov/pubmed/34203318 http://dx.doi.org/10.3390/s21134425 |
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author | Pineda-Reyes, Ana María Herrera-Rivera, María R. Rojas-Chávez, Hugo Cruz-Martínez, Heriberto Medina, Dora I. |
author_facet | Pineda-Reyes, Ana María Herrera-Rivera, María R. Rojas-Chávez, Hugo Cruz-Martínez, Heriberto Medina, Dora I. |
author_sort | Pineda-Reyes, Ana María |
collection | PubMed |
description | Monitoring and detecting carbon monoxide (CO) are critical because this gas is toxic and harmful to the ecosystem. In this respect, designing high-performance gas sensors for CO detection is necessary. Zinc oxide-based materials are promising for use as CO sensors, owing to their good sensing response, electrical performance, cost-effectiveness, long-term stability, low power consumption, ease of manufacturing, chemical stability, and non-toxicity. Nevertheless, further progress in gas sensing requires improving the selectivity and sensitivity, and lowering the operating temperature. Recently, different strategies have been implemented to improve the sensitivity and selectivity of ZnO to CO, highlighting the doping of ZnO. Many studies concluded that doped ZnO demonstrates better sensing properties than those of undoped ZnO in detecting CO. Therefore, in this review, we analyze and discuss, in detail, the recent advances in doped ZnO for CO sensing applications. First, experimental studies on ZnO doped with transition metals, boron group elements, and alkaline earth metals as CO sensors are comprehensively reviewed. We then focused on analyzing theoretical and combined experimental–theoretical studies. Finally, we present the conclusions and some perspectives for future investigations in the context of advancements in CO sensing using doped ZnO, which include room-temperature gas sensing. |
format | Online Article Text |
id | pubmed-8272168 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-82721682021-07-11 Recent Advances in ZnO-Based Carbon Monoxide Sensors: Role of Doping Pineda-Reyes, Ana María Herrera-Rivera, María R. Rojas-Chávez, Hugo Cruz-Martínez, Heriberto Medina, Dora I. Sensors (Basel) Review Monitoring and detecting carbon monoxide (CO) are critical because this gas is toxic and harmful to the ecosystem. In this respect, designing high-performance gas sensors for CO detection is necessary. Zinc oxide-based materials are promising for use as CO sensors, owing to their good sensing response, electrical performance, cost-effectiveness, long-term stability, low power consumption, ease of manufacturing, chemical stability, and non-toxicity. Nevertheless, further progress in gas sensing requires improving the selectivity and sensitivity, and lowering the operating temperature. Recently, different strategies have been implemented to improve the sensitivity and selectivity of ZnO to CO, highlighting the doping of ZnO. Many studies concluded that doped ZnO demonstrates better sensing properties than those of undoped ZnO in detecting CO. Therefore, in this review, we analyze and discuss, in detail, the recent advances in doped ZnO for CO sensing applications. First, experimental studies on ZnO doped with transition metals, boron group elements, and alkaline earth metals as CO sensors are comprehensively reviewed. We then focused on analyzing theoretical and combined experimental–theoretical studies. Finally, we present the conclusions and some perspectives for future investigations in the context of advancements in CO sensing using doped ZnO, which include room-temperature gas sensing. MDPI 2021-06-28 /pmc/articles/PMC8272168/ /pubmed/34203318 http://dx.doi.org/10.3390/s21134425 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 Pineda-Reyes, Ana María Herrera-Rivera, María R. Rojas-Chávez, Hugo Cruz-Martínez, Heriberto Medina, Dora I. Recent Advances in ZnO-Based Carbon Monoxide Sensors: Role of Doping |
title | Recent Advances in ZnO-Based Carbon Monoxide Sensors: Role of Doping |
title_full | Recent Advances in ZnO-Based Carbon Monoxide Sensors: Role of Doping |
title_fullStr | Recent Advances in ZnO-Based Carbon Monoxide Sensors: Role of Doping |
title_full_unstemmed | Recent Advances in ZnO-Based Carbon Monoxide Sensors: Role of Doping |
title_short | Recent Advances in ZnO-Based Carbon Monoxide Sensors: Role of Doping |
title_sort | recent advances in zno-based carbon monoxide sensors: role of doping |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8272168/ https://www.ncbi.nlm.nih.gov/pubmed/34203318 http://dx.doi.org/10.3390/s21134425 |
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