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Room temperature H2S gas sensing properties of In2O3 micro/nanostructured porous thin film and hydrolyzation-induced enhanced sensing mechanism

文献类型：期刊论文

作者Wang, Yingying; Duan, Guotao; Zhu, Yudong; Zhang, Hongwen; Xu, Zongke; Dai, Zhengfei; Cai, Weiping
刊名SENSORS AND ACTUATORS B-CHEMICAL
出版日期2016-06-02
卷号228期号:无页码:74-84
关键词In2o3 Orderly Porous Ultrathin Films Micro/nanostructures Room Temperature Sensing Performances To H2s Ultrahigh Sensitivity Hydrolyzation-induced Sensing Mechanism
DOI10.1016/j.snb.2016.01.002
文献子类Article
英文摘要The micro/nanostructured orderly porous In2O3 ultrathin film and its gas sensing devices are fabricated via the solution-dipping monolayer organic colloidal template. Such In2O3 thin film is of about 200 nm in the apparent thickness and ordered porous structure. The porous In2O3 film-based sensor has exhibited ultrahigh response to H2S at room temperature, more than two orders of magnitude higher than the previously reported highest value. Further experiments have demonstrated that the ambient humidity plays a crucial role in the ultra-highly enhanced gas sensing to H2S at room temperature. A sensing mechanism based on ambient humidity-induced H2S hydrolyzation is presented, including hydrolyzation-induced desorption of the chemisorbed oxygen and formation of water thin film on the In2O3 surface, which can well explain the ultrahigh sensing of In2O3 to H2S at room temperature. An In2O3-based gas sensor array is thus designed for quantitative detection of H2S in the real environment with common interferential gases. This work gives a systematic and deep study of the humidity effects on responses of the In2O3 based sensors to H2S, and reveals the sensing mechanism of In2O3 films to H2S at room temperature, indicating practical significance in designing and fabrication of the In2O3 film-based H2S sensors. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词HYDROGEN-SULFIDE ; COLLOIDAL CRYSTALS ; SENSOR ; SIZE ; AIR ; NANOPARTICLES ; HETEROCONTACT ; PERFORMANCE ; MORPHOLOGY ; NANOFIBERS
WOS研究方向Chemistry ; Electrochemistry ; Instruments & Instrumentation
语种英语
WOS记录号WOS:000371027900011
资助机构National Basic Research Program of China (973 Program)(2011CB302103) ; National Basic Research Program of China (973 Program)(2011CB302103) ; National Basic Research Program of China (973 Program)(2011CB302103) ; National Basic Research Program of China (973 Program)(2011CB302103) ; Natural Science Foundation of China(11374303 ; Natural Science Foundation of China(11374303 ; Natural Science Foundation of China(11374303 ; Natural Science Foundation of China(11374303 ; Anhui Provincial Natural Science Foundation for Distinguished Young Scholar(1408085J10) ; Anhui Provincial Natural Science Foundation for Distinguished Young Scholar(1408085J10) ; Anhui Provincial Natural Science Foundation for Distinguished Young Scholar(1408085J10) ; Anhui Provincial Natural Science Foundation for Distinguished Young Scholar(1408085J10) ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; 11404337 ; 11404337 ; 11404337 ; 11404337 ; 51471161 ; 51471161 ; 51471161 ; 51471161 ; 11574313) ; 11574313) ; 11574313) ; 11574313) ; National Basic Research Program of China (973 Program)(2011CB302103) ; National Basic Research Program of China (973 Program)(2011CB302103) ; National Basic Research Program of China (973 Program)(2011CB302103) ; National Basic Research Program of China (973 Program)(2011CB302103) ; Natural Science Foundation of China(11374303 ; Natural Science Foundation of China(11374303 ; Natural Science Foundation of China(11374303 ; Natural Science Foundation of China(11374303 ; Anhui Provincial Natural Science Foundation for Distinguished Young Scholar(1408085J10) ; Anhui Provincial Natural Science Foundation for Distinguished Young Scholar(1408085J10) ; Anhui Provincial Natural Science Foundation for Distinguished Young Scholar(1408085J10) ; Anhui Provincial Natural Science Foundation for Distinguished Young Scholar(1408085J10) ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; 11404337 ; 11404337 ; 11404337 ; 11404337 ; 51471161 ; 51471161 ; 51471161 ; 51471161 ; 11574313) ; 11574313) ; 11574313) ; 11574313)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22316]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Yingying,Duan, Guotao,Zhu, Yudong,et al. Room temperature H2S gas sensing properties of In2O3 micro/nanostructured porous thin film and hydrolyzation-induced enhanced sensing mechanism[J]. SENSORS AND ACTUATORS B-CHEMICAL,2016,228(无):74-84.
APA Wang, Yingying.,Duan, Guotao.,Zhu, Yudong.,Zhang, Hongwen.,Xu, Zongke.,...&Cai, Weiping.(2016).Room temperature H2S gas sensing properties of In2O3 micro/nanostructured porous thin film and hydrolyzation-induced enhanced sensing mechanism.SENSORS AND ACTUATORS B-CHEMICAL,228(无),74-84.
MLA Wang, Yingying,et al."Room temperature H2S gas sensing properties of In2O3 micro/nanostructured porous thin film and hydrolyzation-induced enhanced sensing mechanism".SENSORS AND ACTUATORS B-CHEMICAL 228.无(2016):74-84.

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来源：合肥物质科学研究院

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