Layer-by-layer assembled In2O3 nanocubes/flower-like MoS2 nanofilm for room temperature formaldehyde sensing

被引：129

作者：

Zhang, Dongzhi ^{[1
]}

Jiang, Chuanxing ^{[1
]}

Wu, Junfeng ^{[1
]}

机构：

[1] China Univ Petr East China, Coll Informat & Control Engn, Qingdao 266580, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2018年 / 273卷

基金：

中国国家自然科学基金;

关键词：

Indium oxide nanocube; Flower-like molybdenum disulfide; Layer-by-layer assembly; Formaldehyde gas sensor; GAS SENSOR; HIGH-SENSITIVITY; FACILE SYNTHESIS; HYBRID FILMS; PERFORMANCE; SNO2; MICROSPHERES; NANOCOMPOSITE; NANOSHEETS; HETEROJUNCTION;

D O I：

10.1016/j.snb.2018.06.044

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This paper reports a room-temperature formaldehyde gas sensor using layer-by-layer assembled indium oxide (In2O3) nanocube/flower-like molybdenum disulfide (MoS2) nanocomposite as sensing film. The In2O3/MoS2 nanofilm was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectrometer (EDS), X-ray photoelectron spectroscopy (XPS), transmission electron microscope (TEM) and Brunauer-Emmett-Teller (BET) measurement. The investigation of the In2O3/MoS2 nanofilm for formaldehyde vapor sensing was performed at room temperature. The experimental results showed that the gas sensing performances of In2O3/MoS2 nanofilm was superior to that of the In2O3 nanocube and MoS2 single counterparts, and high response, fast response/recovery time as well as outstanding repeatability was demonstrated. The enhanced sensing performance of the In2O3/MoS2 nanofilm was attributed to their unique nanostructure, high ratio of accessible sites for gas diffusion, and special interactions between the formaldehyde gas and the nanofilm.

引用

页码：176 / 184

页数：9

共 58 条

[1]

Baek DH, 2015, 2015 TRANSDUCERS - 2015 18TH INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS (TRANSDUCERS), P618, DOI 10.1109/TRANSDUCERS.2015.7180999

[2] Sol-gel based sensor for selective formaldehyde determination [J].

Bunkoed, Opas ;

Davis, Frank ;

Kanatharana, Proespichaya ;

Thavarungkul, Panote ;

Higson, Seamus P. J. .

ANALYTICA CHIMICA ACTA, 2010, 659 (1-2) :251-257

[3]

Chhowalla M, 2013, NAT CHEM, V5, P263, DOI [10.1038/NCHEM.1589, 10.1038/nchem.1589]

[4] Au@ZnO core-shell structure for gaseous formaldehyde sensing at room temperature [J].

Chung, Feng-Chao ;

Zhu, Zhen ;

Luo, Peng-Yi ;

Wu, Ren-Jang ;

Li, Wei .

SENSORS AND ACTUATORS B-CHEMICAL, 2014, 199 :314-319

[5] Formaldehyde Gas Sensors: A Review [J].

Chung, Po-Ren ;

Tzeng, Chun-Ta ;

Ke, Ming-Tsun ;

Lee, Chia-Yen .

SENSORS, 2013, 13 (04) :4468-4484

[6] Stabilizing MoS2 Nanosheets through SnO2 Nanocrystal Decoration for High-Performance Gas Sensing in Air [J].

Cui, Shumao ;

Wen, Zhenhai ;

Huang, Xingkang ;

Chang, Jingbo ;

Chen, Junhong .

SMALL, 2015, 11 (19) :2305-2313

[7] Visible-light activate mesoporous WO3 sensors with enhanced formaldehyde-sensing property at room temperature [J].

Deng, Lubin ;

Ding, Xiaohu ;

Zeng, Dawen ;

Tian, Shouqin ;

Li, Huayao ;

Xie, Changsheng .

SENSORS AND ACTUATORS B-CHEMICAL, 2012, 163 (01) :260-266

[8] Tunable sulfur desorption in exfoliated MoS2 by means of thermal annealing in ultra-high vacuum [J].

Donarelli, M. ;

Bisti, F. ;

Perrozzi, F. ;

Ottaviano, L. .

CHEMICAL PHYSICS LETTERS, 2013, 588 :198-202

[9] Nonaqueous synthesis of Ag-functionalized In2O3/ZnO nanocomposites for highly sensitive formaldehyde sensor [J].

Dong, Chenjun ;

Liu, Xu ;

Han, Bingqian ;

Deng, Shaojuan ;

Xiao, Xuechun ;

Wang, Yude .

SENSORS AND ACTUATORS B-CHEMICAL, 2016, 224 :193-200

[10] MoS2-based all-fiber humidity sensor for monitoring human breath with fast response and recovery [J].

Du, Bobo ;

Yang, Dexing ;

She, Xiaoyang ;

Yuan, Yuan ;

Mao, Dong ;

Jiang, Yajun ;

Lu, Fanfan .

SENSORS AND ACTUATORS B-CHEMICAL, 2017, 251 :180-184

← 1 2 3 4 5 6 →