Ultrafine Pt NPs-Decorated SnO2/alpha-Fe2O3 Hollow Nanospheres with Highly Enhanced Sensing Performances for Styrene

doi:10.1016/j.jhazmat.2018.07.021

	Ultrafine Pt NPs-Decorated SnO2/alpha-Fe2O3 Hollow Nanospheres with Highly Enhanced Sensing Performances for Styrene
	Liu, Bo1,2 ; Li, Yuanyuan 1,2; Gao, Lei 1; Zhou, Fei 1; Duan, Guotao 1
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2018-09-15
卷号	358 页码:355-365
关键词	Styrene SnO2/alpha-Fe2O3/Pt Enhanced sensing performance Catalytic sensitization Electronic sensitization
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2018.07.021
通讯作者	Duan, Guotao(duangt@issp.ac.cn)
英文摘要	Styrene, a chronic toxic gas, is of great harm to human health. It is urgently required to develop a portable, efficient, and inexpensive method to detect this toxic gas. Chemiresistive gas sensor based on semiconductor metal-oxides is considered as one of the best candidate suited to above features, while its sensitivity and selectivity are not enough high for the applications. Herein, the ultrafine Pt NPs embellished SnO2/alpha-Fe2O3 hollow nanoheterojunctions were achieved by in-situ reduction and subsequent calcination treatment. Particularly, such yielding products exhibited excellent styrene sensing performances with a detection limit of 50 ppb and extremely fast response/recovery time (3/15 s, respectively). More importantly, this SnO2/alpha-Fe2O3/Pt sensing platform revealed improved styrene selectivity against other malodorous gases. Additionally, the significant enhancement for styrene sensing response was also obtained compared to other two sensors (pristine SnO2 and SnO2/alpha-Fe2O3, respectively). Further studies demonstrated that such enhanced performances possibly be owing to the "catalytic sensitization" effect driven by Pt NPs and "electronic sensitization" effect triggered through the formation of Schottky junction as well as n-n nanoheterojunction. Based on these sensing features, it is probably great promising in the detection of styrene gas in the future.
资助项目	National Key R&D Program of China[2016YFC0201103] ; Natural Science Foundation of China[11674320] ; Natural Science Foundation of China[51471161] ; Natural Science Foundation of China[51771189] ; Anhui Provincial Natural Science Foundation[1608085 MA11] ; Youth Innovation Promotion Association CAS ; Key Research Projects of the Frontier Science CAS[QYZDS-SSW-JSC017]
WOS关键词	CHROMATOGRAPHY-MASS-SPECTROMETRY ; GALVANIC REPLACEMENT ; ROOM-TEMPERATURE ; NANOROD ARRAYS ; ZINC-OXIDE ; THIN-FILMS ; GAS ; NANOPARTICLES ; NANOSHEETS ; NANOFIBERS
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000442334400039
资助机构	National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; 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内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/37957]
专题	中国科学院合肥物质科学研究院
通讯作者	Duan, Guotao
作者单位	1.Chinese Acad Sci, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol, Inst Solid State Phys, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Liu, Bo,Li, Yuanyuan,Gao, Lei,et al. Ultrafine Pt NPs-Decorated SnO2/alpha-Fe2O3 Hollow Nanospheres with Highly Enhanced Sensing Performances for Styrene[J]. JOURNAL OF HAZARDOUS MATERIALS,2018,358:355-365.
APA	Liu, Bo,Li, Yuanyuan,Gao, Lei,Zhou, Fei,&Duan, Guotao.(2018).Ultrafine Pt NPs-Decorated SnO2/alpha-Fe2O3 Hollow Nanospheres with Highly Enhanced Sensing Performances for Styrene.JOURNAL OF HAZARDOUS MATERIALS,358,355-365.
MLA	Liu, Bo,et al."Ultrafine Pt NPs-Decorated SnO2/alpha-Fe2O3 Hollow Nanospheres with Highly Enhanced Sensing Performances for Styrene".JOURNAL OF HAZARDOUS MATERIALS 358(2018):355-365.