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

页码：423 / 430

页数：8

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