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...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2021-06-01
|
Series: | Sensors |
Subjects: | |
Online Access: | https://www.mdpi.com/1424-8220/21/13/4425 |
id |
doaj-32927c96a5e644df86c9e9f48e609446 |
---|---|
record_format |
Article |
spelling |
doaj-32927c96a5e644df86c9e9f48e6094462021-07-15T15:45:26ZengMDPI AGSensors1424-82202021-06-01214425442510.3390/s21134425Recent Advances in ZnO-Based Carbon Monoxide Sensors: Role of DopingAna María Pineda-Reyes0María R. Herrera-Rivera1Hugo Rojas-Chávez2Heriberto Cruz-Martínez3Dora I. Medina4Laboratorio de Investigación y Posgrado en Tecnología Farmacéutica, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Av. 1o. de Mayo S/N, Cuautitlán Izcalli, Estado de Mexico 54740, MexicoTecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey, Nuevo León 64849, MexicoTecnológico Nacional de México, Instituto Tecnológico de Tláhuac II, Camino Real 625, Tláhuac, Ciudad de Mexico 13508, MexicoTecnológico Nacional de México, Instituto Tecnológico del Valle de Etla, Abasolo S/N, Barrio del Agua Buena, Santiago Suchilquitongo, Oaxaca 68230, MexicoTecnologico de Monterrey, School of Engineering and Sciences, Atizapan de Zaragoza, Estado de Mexico 52926, MexicoMonitoring 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.https://www.mdpi.com/1424-8220/21/13/4425ZO dopingCO gasZnO sensorssensitivityselectivitydensity functional theory |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ana María Pineda-Reyes María R. Herrera-Rivera Hugo Rojas-Chávez Heriberto Cruz-Martínez Dora I. Medina |
spellingShingle |
Ana María Pineda-Reyes María R. Herrera-Rivera Hugo Rojas-Chávez Heriberto Cruz-Martínez Dora I. Medina Recent Advances in ZnO-Based Carbon Monoxide Sensors: Role of Doping Sensors ZO doping CO gas ZnO sensors sensitivity selectivity density functional theory |
author_facet |
Ana María Pineda-Reyes María R. Herrera-Rivera Hugo Rojas-Chávez Heriberto Cruz-Martínez Dora I. Medina |
author_sort |
Ana María Pineda-Reyes |
title |
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_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_sort |
recent advances in zno-based carbon monoxide sensors: role of doping |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2021-06-01 |
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. |
topic |
ZO doping CO gas ZnO sensors sensitivity selectivity density functional theory |
url |
https://www.mdpi.com/1424-8220/21/13/4425 |
work_keys_str_mv |
AT anamariapinedareyes recentadvancesinznobasedcarbonmonoxidesensorsroleofdoping AT mariarherrerarivera recentadvancesinznobasedcarbonmonoxidesensorsroleofdoping AT hugorojaschavez recentadvancesinznobasedcarbonmonoxidesensorsroleofdoping AT heribertocruzmartinez recentadvancesinznobasedcarbonmonoxidesensorsroleofdoping AT doraimedina recentadvancesinznobasedcarbonmonoxidesensorsroleofdoping |
_version_ |
1721298498712764416 |