CuxO Nanostructure-Based Gas Sensors for H2S Detection: An Overview

H2S gas is a toxic and hazardous byproduct of the oil and gas industries. It paralyzes the olfactory nerves, with concentrations above 100 ppm, resulting in loss of smell; prolonged inhalation may even cause death. One of the most important semiconducting metal oxides for the...

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Main Authors:	Sachin Navale, Mehrdad Shahbaz, Sanjit Manohar Majhi, Ali Mirzaei, Hyoun Woo Kim, Sang Sub Kim
Format:	Article
Language:	English
Published:	MDPI AG 2021-06-01
Series:	Chemosensors
Subjects:	gas sensor H<sub>2</sub>S gas Cu<sub>x</sub>O Cu<sub>x</sub>S sensing mechanism
Online Access:	https://www.mdpi.com/2227-9040/9/6/127

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record_format	Article
spelling	doaj-92c15df0a09a4ca19f9336093a953fe62021-06-30T23:09:11ZengMDPI AGChemosensors2227-90402021-06-01912712710.3390/chemosensors9060127Cu<sub>x</sub>O Nanostructure-Based Gas Sensors for H<sub>2</sub>S Detection: An OverviewSachin Navale0Mehrdad Shahbaz1Sanjit Manohar Majhi2Ali Mirzaei3Hyoun Woo Kim4Sang Sub Kim5Division of Materials Science and Engineering, Hanyang University, Seoul 04763, KoreaDepartment of Materials Science and Engineering, Faculty of Engineering, Urmia University, Urmia 5756-151818, IranDivision of Materials Science and Engineering, Hanyang University, Seoul 04763, KoreaDepartment of Materials Science and Engineering, Shiraz University of Technology, Shiraz 715557-13876, IranDivision of Materials Science and Engineering, Hanyang University, Seoul 04763, KoreaDepartment of Materials Science and Engineering, Inha University, Incheon 22212, KoreaH<sub>2</sub>S gas is a toxic and hazardous byproduct of the oil and gas industries. It paralyzes the olfactory nerves, with concentrations above 100 ppm, resulting in loss of smell; prolonged inhalation may even cause death. One of the most important semiconducting metal oxides for the detection of H<sub>2</sub>S is Cu<sub>x</sub>O (x = 1, 2), which is converted to Cu<sub>x</sub>S upon exposure to H<sub>2</sub>S, leading to a remarkable modulation in the resistance and appearance of an electrical sensing signal. In this review, various morphologies of Cu<sub>x</sub>O in the pristine form, composites of Cu<sub>x</sub>O with other materials, and decoration/doping of noble metals on Cu<sub>x</sub>O nanostructures for the reliable detection of H<sub>2</sub>S gas are thoroughly discussed. With an emphasis to the detection mechanism of Cu<sub>x</sub>O-based gas sensors, this review presents findings that are of considerable value as a reference.https://www.mdpi.com/2227-9040/9/6/127gas sensorH<sub>2</sub>S gasCu<sub>x</sub>OCu<sub>x</sub>Ssensing mechanism
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Sachin Navale Mehrdad Shahbaz Sanjit Manohar Majhi Ali Mirzaei Hyoun Woo Kim Sang Sub Kim
spellingShingle	Sachin Navale Mehrdad Shahbaz Sanjit Manohar Majhi Ali Mirzaei Hyoun Woo Kim Sang Sub Kim Cu<sub>x</sub>O Nanostructure-Based Gas Sensors for H<sub>2</sub>S Detection: An Overview Chemosensors gas sensor H<sub>2</sub>S gas Cu<sub>x</sub>O Cu<sub>x</sub>S sensing mechanism
author_facet	Sachin Navale Mehrdad Shahbaz Sanjit Manohar Majhi Ali Mirzaei Hyoun Woo Kim Sang Sub Kim
author_sort	Sachin Navale
title	Cu<sub>x</sub>O Nanostructure-Based Gas Sensors for H<sub>2</sub>S Detection: An Overview
title_short	Cu<sub>x</sub>O Nanostructure-Based Gas Sensors for H<sub>2</sub>S Detection: An Overview
title_full	Cu<sub>x</sub>O Nanostructure-Based Gas Sensors for H<sub>2</sub>S Detection: An Overview
title_fullStr	Cu<sub>x</sub>O Nanostructure-Based Gas Sensors for H<sub>2</sub>S Detection: An Overview
title_full_unstemmed	Cu<sub>x</sub>O Nanostructure-Based Gas Sensors for H<sub>2</sub>S Detection: An Overview
title_sort	cu<sub>x</sub>o nanostructure-based gas sensors for h<sub>2</sub>s detection: an overview
publisher	MDPI AG
series	Chemosensors
issn	2227-9040
publishDate	2021-06-01
description	H<sub>2</sub>S gas is a toxic and hazardous byproduct of the oil and gas industries. It paralyzes the olfactory nerves, with concentrations above 100 ppm, resulting in loss of smell; prolonged inhalation may even cause death. One of the most important semiconducting metal oxides for the detection of H<sub>2</sub>S is Cu<sub>x</sub>O (x = 1, 2), which is converted to Cu<sub>x</sub>S upon exposure to H<sub>2</sub>S, leading to a remarkable modulation in the resistance and appearance of an electrical sensing signal. In this review, various morphologies of Cu<sub>x</sub>O in the pristine form, composites of Cu<sub>x</sub>O with other materials, and decoration/doping of noble metals on Cu<sub>x</sub>O nanostructures for the reliable detection of H<sub>2</sub>S gas are thoroughly discussed. With an emphasis to the detection mechanism of Cu<sub>x</sub>O-based gas sensors, this review presents findings that are of considerable value as a reference.
topic	gas sensor H<sub>2</sub>S gas Cu<sub>x</sub>O Cu<sub>x</sub>S sensing mechanism
url	https://www.mdpi.com/2227-9040/9/6/127
work_keys_str_mv	AT sachinnavale cusubxsubonanostructurebasedgassensorsforhsub2subsdetectionanoverview AT mehrdadshahbaz cusubxsubonanostructurebasedgassensorsforhsub2subsdetectionanoverview AT sanjitmanoharmajhi cusubxsubonanostructurebasedgassensorsforhsub2subsdetectionanoverview AT alimirzaei cusubxsubonanostructurebasedgassensorsforhsub2subsdetectionanoverview AT hyounwookim cusubxsubonanostructurebasedgassensorsforhsub2subsdetectionanoverview AT sangsubkim cusubxsubonanostructurebasedgassensorsforhsub2subsdetectionanoverview
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Cu<sub>x</sub>O Nanostructure-Based Gas Sensors for H<sub>2</sub>S Detection: An Overview

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