A high response butanol gas sensor based on ZnO hollow spheres

被引：148
作者：
Han, Bingqian [1 ]
Liu, Xu [1 ]
Xing, Xinxin [1 ]
Chen, Nan [1 ]
Xiao, Xuechun [1 ,2 ]
Liu, Shuyang [2 ,3 ]
Wang, Yude [1 ,2 ]
机构：
[1] Yunnan Univ, Sch Phys Sci & Technol, Kunming 650091, Peoples R China
[2] Yunnan Univ, Yunnan Prov Key Lab Miconano Mat & Technol, Kunming 650091, Peoples R China
[3] Henan Normal Univ, Xinlian Coll, Dept Mech Engn, Zhengzhou 451464, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2016年 / 237卷
基金：
中国国家自然科学基金;
关键词：
ZnO hollow spheres; Gas sensor; n-Butanol; Gas response; Stability; HIERARCHICAL NANOSTRUCTURES; SNO2; NANOPARTICLES; TEMPERATURE; FABRICATION; NANOWIRES; GROWTH; PERFORMANCE;
D O I：
10.1016/j.snb.2016.06.117
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
ZnO hollow spheres with high crystallinity were prepared successfully via a simple template process using ZnCl2, carbamide and polystyrene spheres (PSS) as raw materials. The structural and morphological characterizations of the samples were carried out by X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS), respectively. Indirect-heating sensor using ZnO hollow spheres as sensing materials was fabricated on an alumina tube with Au electrodes and Pt wires. The gas sensing properties of the as-synthesized ZnO hollow spheres for n-butanol were investigated. . It is shown that the sensor exhibited good sensing performances, characterized by high response, response, very short response time, and stability to n-butanol gas at operating temperature of 385 degrees C. These results indicate that the ZnO hollow spheres are highly promising candidates for practical detectors for for n-butanol. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：423 / 430
页数：8
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