Superior Hydrogen Sensing Property of Porous NiO/SnO2 Nanofibers Synthesized via Carbonization

被引：33
作者：
Liu, Hongcheng [1 ]
Wang, Feipeng [1 ]
Hu, Kelin [1 ]
Zhang, Bin [2 ]
He, Li [1 ]
Zhou, Qu [3 ]
机构：
[1] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Analyt & Testing Ctr, Chongqing 401331, Peoples R China
[3] Southwest Univ, Coll Engn & Technol, Chongqing 400715, Peoples R China
来源：
NANOMATERIALS | 2019年 / 9卷 / 09期
基金：
国家重点研发计划;
关键词：
NiO/SnO2; nanofibers; p-n heterojunctions; porous nanostructure; H-2; sensor; HOLLOW NANOFIBERS; GAS; SENSOR; FABRICATION; NANOPARTICLES; PERFORMANCE; NANOSHEET;
D O I：
10.3390/nano9091250
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this paper, the porous NiO/SnO2 nanofibers were synthesized via the electrospinning method along with the carbonization process. The characterization results show that the pristine SnO2-based nanofibers can form porous structure with different grain size by carbonization. The hydrogen gas-sensing investigations indicate that the NiO/SnO2 sensor exhibits more prominent sensing properties than those of pure SnO2 sensor devices. Such enhanced performance is mainly attributed to the porous nanostructure, which can provide large active adsorption sites for surface reaction. Moreover, the existence of p-n heterojunctions between NiO and SnO2 also plays a key role in enhancing gas-sensing performances. Finally, the H-2 sensing mechanism based on the NiO/SnO2 nanocomposite was proposed for developing high-performance gas sensor devices.
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页数：14
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共 60 条
[1]   Hydrogen sensor based on graphene/ZnO nanocomposite [J].
Anand, Kanika ;
Singh, Onkar ;
Singh, Manmeet Pal ;
Kaur, Jasmeet ;
Singh, Ravi Chand .
SENSORS AND ACTUATORS B-CHEMICAL, 2014, 195 :409-415
[2]   On the construction of hollow nanofibers of ZnO-SnO2 heterojunctions to enhance the NO2 sensing properties [J].
Bai, Shouli ;
Fu, Hang ;
Zhao, Yingying ;
Tian, Ke ;
Luo, Ruixian ;
Li, Dianqing ;
Chen, Aifan .
SENSORS AND ACTUATORS B-CHEMICAL, 2018, 266 :692-702
[3]   Enhanced acetone sensor based on Au functionalized In-doped ZnSnO3 nanofibers synthesized by electrospinning method [J].
Chen, Qiong ;
Wang, Yuhua ;
Wang, Mingxiao ;
Ma, Shuyi ;
Wang, Peiyu ;
Zhang, Guoheng ;
Chen, Wanjun ;
Jiao, Haiyan ;
Liu, Liwei ;
Xu, Xiaoli .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2019, 543 :285-299
[4]   Nickel-doped tin oxide hollow nanofibers prepared by electrospinning for acetone sensing [J].
Cheng, J. P. ;
Wang, B. B. ;
Zhao, M. G. ;
Liu, F. ;
Zhang, X. B. .
SENSORS AND ACTUATORS B-CHEMICAL, 2014, 190 :78-85
[5]   Improvement of sensing properties for SnO2 gas sensor by tuning of exposed crystal face [J].
Choi, Pil Gyu ;
Izu, Noriya ;
Shirahata, Naoto ;
Masuda, Yoshitake .
SENSORS AND ACTUATORS B-CHEMICAL, 2019, 296
[6]   Synthesis and characterization of different dopant (Ge, Nd, W)-doped ZnO nanorods and their CO2 gas sensing applications [J].
Colak, Hakan ;
Karakose, Ercan .
SENSORS AND ACTUATORS B-CHEMICAL, 2019, 296
[7]   Contribution of oxygen-vacancy defect-types in enhanced CO2 sensing of nanoparticulate Zn-doped SnO2 films [J].
Deepa, S. ;
Kumari, K. Prasanna ;
Thomas, Boben .
CERAMICS INTERNATIONAL, 2017, 43 (18) :17128-17141
[8]   One-pot synthesis of In doped NiO nanofibers and their gas sensing properties [J].
Feng, Changhao ;
Kou, Xueying ;
Chen, Bin ;
Qian, Guobing ;
Sun, Yanfeng ;
Lu, Geyu .
SENSORS AND ACTUATORS B-CHEMICAL, 2017, 253 :584-591
[9]   Preparation of plasmonic porous Au@AgVO3 belt-like nanocomposites with enhanced visible light photocatalytic activity [J].
Fu, Haitao ;
Yang, Xiaohong ;
Zhang, Zhikui ;
Wang, Wenwen ;
An, Xizhong ;
Dong, Yu ;
Li, Xue .
NANOTECHNOLOGY, 2018, 29 (29)
[10]   Synthesis of fast response, highly sensitive and selective Ni:ZnO based NO2 sensor [J].
Ganbavle, V. V. ;
Inamdar, S. I. ;
Agawane, G. L. ;
Kim, J. H. ;
Rajpure, K. Y. .
CHEMICAL ENGINEERING JOURNAL, 2016, 286 :36-47
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