Synthesis and characterization of hierarchical porous SnO2 for enhancing ethanol sensing properties

被引：57

作者：

Zhang, Bowen ^{[1
]}

Fu, Wuyou ^{[1
]}

Li, Huayang ^{[1
]}

Fu, Xinglin ^{[1
]}

Wang, Ying ^{[1
]}

Bala, Hari ^{[1
]}

Wang, Xiaodong ^{[1
]}

Sun, Guang ^{[1
]}

Cao, Jianliang ^{[1
]}

Zhang, Zhanying ^{[1
]}

机构：

[1] Henan Polytech Univ, Sch Mat Sci & Engn, Cultivating Base Key Lab Environm Friendly Inorga, Jiaozuo 454000, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2016年 / 363卷

基金：

中国国家自然科学基金;

关键词：

Hierarchical porous materials; SnO2; Polystyrene (PS) microspheres; Gas sensors; GAS; NANOTUBES; NANORODS; GROWTH;

D O I：

10.1016/j.apsusc.2015.12.042

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hierarchical porous SnO2 (HP-SnO2) nanoparticles (NPs) were synthesized via a modified sol-gel method by employing polystyrene (PS) microspheres as a template and SnCl2 as a tin source. The samples presented a three-dimensional random arrangement of macropores with average pore diameter of about 210 nm, of which the pores walls were composed of NPs with the size of about 11 nm. The N-2-sorption analysis showed that the presence of the hierarchical mesoporous structure in the samples. The gas sensing measurements showed that the response of HP-SnO2 based sensor reached the maximum value at the operating temperature of 240 degrees C, which was 60 degrees C lower than that of SnO2 based sensor. Moreover, the HP-SnO2 exhibited a significant improvement for the response and a short response-recovery time to ethanol vapor. The results indicated that HP-SnO2 NPs were of great potential for application in ethanol sensors. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：560 / 565

页数：6

共 34 条

[1] Conduction model of metal oxide gas sensors [J].

Barsan, N ;

Weimar, U .

JOURNAL OF ELECTROCERAMICS, 2001, 7 (03) :143-167

[2]

Bessac Bret F, 2010, Proc Am Thorac Soc, V7, P269, DOI 10.1513/pats.201001-004SM

[3] Structural and optical properties of SnO2 nanotowers and interconnected nanowires prepared by carbothermal reduction method [J].

Bhardwaj, Neha ;

Kuriakose, Sini ;

Mohapatra, S. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 592 :238-243

[4] A Facile and Green Approach for the Controlled Synthesis of Porous SnO2 Nanospheres: Application as an Efficient Photocatalyst and an Excellent Gas Sensing Material [J].

Boppella, P. Manjula Ramireddy ;

Manorama, Sunkara V. .

ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (11) :6252-6260

[5] Templating Synthesis of SnO2 Nanotubes Loaded with Ag2O Nanoparticles and Their Enhanced Gas Sensing Properties [J].

Chen, Xing ;

Guo, Zheng ;

Xu, Wei-Hong ;

Yao, Hong-Bin ;

Li, Min-Qiang ;

Liu, Jin-Huai ;

Huang, Xing-Jiu ;

Yu, Shu-Hong .

ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (11) :2049-2056

[6] Linear ethanol sensing of SnO2 nanorods with extremely high sensitivity [J].

Chen, YJ ;

Nie, L ;

Xue, XY ;

Wang, YG ;

Wang, TH .

APPLIED PHYSICS LETTERS, 2006, 88 (08)

[7] Large-scale, solution-phase growth of single-crystalline SnO2 nanorods [J].

Cheng, B ;

Russell, JM ;

Shi, WS ;

Zhang, L ;

Samulski, ET .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (19) :5972-5973

[8] Nanosensors: towards morphological control of gas sensing activity. SnO2, In2O3, ZnO and WO3 case studies [J].

Gurlo, Aleksander .

NANOSCALE, 2011, 3 (01) :154-165

[9] Carrier Generation and Collection in CdS/CdSe-Sensitized SnO2 Solar Cells Exhibiting Unprecedented Photocurrent Densities [J].

Hossain, Md Anower ;

Jennings, James Robert ;

Koh, Zhen Yu ;

Wang, Qing .

ACS NANO, 2011, 5 (04) :3172-3181

[10] A portable embedded toxic gas detection device based on a cross-responsive sensor array [J].

Hou, Changjun ;

Li, Jiangjie ;

Huo, Danqun ;

Luo, Xiaogang ;

Dong, Jiale ;

Yang, Mei ;

Shi, Xiaojie .

SENSORS AND ACTUATORS B-CHEMICAL, 2012, 161 (01) :244-250

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