Semiconducting metal oxides as sensors for environmentally hazardous gases

Semiconducting metal oxides as sensors for environmentally hazardous gases

This article extensively reviews the recent development of semiconductor metal oxide gas sensors for environmentally hazardous gases including NO 2, NO, N2O, H2S, CO, NH3, CH 4, SO2 and CO2. The gas sensing properties of differently-prepared metal oxides and loaded metal oxides towards nine environm...

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Main Authors: Wetchakun K., Samerjai T., Tamaekong N., Liewhiran C., Siriwong C., Kruefu V., Wisitsoraat A., Tuantranont A., Phanichphant S.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-81155133704&partnerID=40&md5=fc97387776dd914d48576e727d04049f
http://cmuir.cmu.ac.th/handle/6653943832/6395
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-63952014-08-30T03:24:10Z Semiconducting metal oxides as sensors for environmentally hazardous gases Wetchakun K. Samerjai T. Tamaekong N. Liewhiran C. Siriwong C. Kruefu V. Wisitsoraat A. Tuantranont A. Phanichphant S. This article extensively reviews the recent development of semiconductor metal oxide gas sensors for environmentally hazardous gases including NO 2, NO, N2O, H2S, CO, NH3, CH 4, SO2 and CO2. The gas sensing properties of differently-prepared metal oxides and loaded metal oxides towards nine environmentally hazardous gases have been individually compared and digested. Promising materials for sensitive and selective detection of each hazardous gas have been identified. For instance, unloaded WO3 nanostructures are the most promising candidates for NO2 sensing while metal catalyst loaded WO3 and gold-loaded SnO2 sensors are among the most effective for NO and N2O sensing, respectively. Moreover, related gas-sensing mechanisms are comprehensively discussed. © 2011 Elsevier B.V. All rights reserved. 2014-08-30T03:24:10Z 2014-08-30T03:24:10Z 2011 Article 9254005 10.1016/j.snb.2011.08.032 SABCE http://www.scopus.com/inward/record.url?eid=2-s2.0-81155133704&partnerID=40&md5=fc97387776dd914d48576e727d04049f http://cmuir.cmu.ac.th/handle/6653943832/6395 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description This article extensively reviews the recent development of semiconductor metal oxide gas sensors for environmentally hazardous gases including NO 2, NO, N2O, H2S, CO, NH3, CH 4, SO2 and CO2. The gas sensing properties of differently-prepared metal oxides and loaded metal oxides towards nine environmentally hazardous gases have been individually compared and digested. Promising materials for sensitive and selective detection of each hazardous gas have been identified. For instance, unloaded WO3 nanostructures are the most promising candidates for NO2 sensing while metal catalyst loaded WO3 and gold-loaded SnO2 sensors are among the most effective for NO and N2O sensing, respectively. Moreover, related gas-sensing mechanisms are comprehensively discussed. © 2011 Elsevier B.V. All rights reserved.
format Article
author Wetchakun K.
Samerjai T.
Tamaekong N.
Liewhiran C.
Siriwong C.
Kruefu V.
Wisitsoraat A.
Tuantranont A.
Phanichphant S.
spellingShingle Wetchakun K.
Samerjai T.
Tamaekong N.
Liewhiran C.
Siriwong C.
Kruefu V.
Wisitsoraat A.
Tuantranont A.
Phanichphant S.
Semiconducting metal oxides as sensors for environmentally hazardous gases
author_facet Wetchakun K.
Samerjai T.
Tamaekong N.
Liewhiran C.
Siriwong C.
Kruefu V.
Wisitsoraat A.
Tuantranont A.
Phanichphant S.
author_sort Wetchakun K.
title Semiconducting metal oxides as sensors for environmentally hazardous gases
title_short Semiconducting metal oxides as sensors for environmentally hazardous gases
title_full Semiconducting metal oxides as sensors for environmentally hazardous gases
title_fullStr Semiconducting metal oxides as sensors for environmentally hazardous gases
title_full_unstemmed Semiconducting metal oxides as sensors for environmentally hazardous gases
title_sort semiconducting metal oxides as sensors for environmentally hazardous gases
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-81155133704&partnerID=40&md5=fc97387776dd914d48576e727d04049f
http://cmuir.cmu.ac.th/handle/6653943832/6395
_version_ 1681420605720625152

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