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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
	Zhang, Zhenxin1; Huang, Kaijin1,2,3; Yuan, Fangli2; Xie, Changsheng1
刊名	JOURNAL OF MATERIALS RESEARCH
	2014-01-14
卷号	29期号:1页码:139-147
关键词	sensor arrays ftir temperature oxidation catalysts level sensitivity fabrication mechanism exposure
ISSN号	0884-2914
其他题名	J. Mater. Res.
中文摘要	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.
英文摘要	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.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Materials Science, Multidisciplinary
研究领域[WOS]	Materials Science
关键词[WOS]	SENSOR ARRAYS ; FTIR ; TEMPERATURE ; OXIDATION ; CATALYSTS ; LEVEL ; SENSITIVITY ; FABRICATION ; MECHANISM ; EXPOSURE
收录类别	SCI
原文出处	://WOS:000332934500016
语种	英语
WOS记录号	WOS:000332934500016
公开日期	2014-05-06
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/8106]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.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
推荐引用方式 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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