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Gas-sensing properties and in situ diffuse reflectance infrared Fourier transform spectroscopy study of formaldehyde adsorption and reactions on SnO2 films
Alternative TitleJ. Mater. Res.
Zhang, Zhenxin1; Huang, Kaijin1,2,3; Yuan, Fangli2; Xie, Changsheng1
2014-01-14
Source PublicationJOURNAL OF MATERIALS RESEARCH
ISSN0884-2914
Volume29Issue:1Pages:139-147
AbstractFormaldehyde (HCHO) is widely used in construction, wood processing, furniture, textile, and carpeting industries. However, it is highly toxic. It strongly irritates human eyes and nose, and is a carcinogen. In this paper, the effects of gas concentration and operating temperature on the sensing properties of the nano-SnO2 flat-type coplanar gas sensor arrays to formaldehyde were studied. The results revealed that the nano-SnO2 flat-type coplanar gas sensor arrays exhibited good sensitivity such as a fast response, short recovery time, and low detection limit. In addition, the adsorption and surface reactions of formaldehyde on SnO2 films were also studied by in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) at 200-300 degrees C. Molecularly adsorbed formaldehyde, formate, dioxymethylene, polyoxymethylene, H2O, and CO2 surface species were formed during formaldehyde adsorption at 200-300 degrees C. Moreover, a possible mechanism of the reaction process was given.; Formaldehyde (HCHO) is widely used in construction, wood processing, furniture, textile, and carpeting industries. However, it is highly toxic. It strongly irritates human eyes and nose, and is a carcinogen. In this paper, the effects of gas concentration and operating temperature on the sensing properties of the nano-SnO2 flat-type coplanar gas sensor arrays to formaldehyde were studied. The results revealed that the nano-SnO2 flat-type coplanar gas sensor arrays exhibited good sensitivity such as a fast response, short recovery time, and low detection limit. In addition, the adsorption and surface reactions of formaldehyde on SnO2 films were also studied by in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) at 200-300 degrees C. Molecularly adsorbed formaldehyde, formate, dioxymethylene, polyoxymethylene, H2O, and CO2 surface species were formed during formaldehyde adsorption at 200-300 degrees C. Moreover, a possible mechanism of the reaction process was given.
KeywordSensor Arrays Ftir Temperature Oxidation Catalysts Level Sensitivity Fabrication Mechanism Exposure
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1557/jmr.2013.300
URL查看原文
Indexed BySCI
Language英语
WOS KeywordSENSOR ARRAYS ; FTIR ; TEMPERATURE ; OXIDATION ; CATALYSTS ; LEVEL ; SENSITIVITY ; FABRICATION ; MECHANISM ; EXPOSURE
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000332934500016
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8106
Collection研究所(批量导入)
Affiliation1.Huazhong Univ Sci & Technol, State Key Lab Mat Proc & & Mould Technol, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Zhenxin,Huang, Kaijin,Yuan, Fangli,et al. Gas-sensing properties and in situ diffuse reflectance infrared Fourier transform spectroscopy study of formaldehyde adsorption and reactions on SnO2 films[J]. JOURNAL OF MATERIALS RESEARCH,2014,29(1):139-147.
APA Zhang, Zhenxin,Huang, Kaijin,Yuan, Fangli,&Xie, Changsheng.(2014).Gas-sensing properties and in situ diffuse reflectance infrared Fourier transform spectroscopy study of formaldehyde adsorption and reactions on SnO2 films.JOURNAL OF MATERIALS RESEARCH,29(1),139-147.
MLA Zhang, Zhenxin,et al."Gas-sensing properties and in situ diffuse reflectance infrared Fourier transform spectroscopy study of formaldehyde adsorption and reactions on SnO2 films".JOURNAL OF MATERIALS RESEARCH 29.1(2014):139-147.
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