High ethanol sensitive SnO2 microspheres

被引：109
|
作者：
Ge, JP
Wang, J
Zhang, HX
Wang, X
Peng, Q
Li, YD [1 ]
机构：
[1] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China
[2] Tsing Hua Univ, Key Lab Atom & Mol Nanosci, Minist Educ, Beijing 100084, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2006年 / 113卷 / 02期
基金：
中国国家自然科学基金;
关键词：
SnO2; microsphere; ethanol sensor;
D O I：
10.1016/j.snb.2005.04.001
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Comparing with the traditional method to make the tin oxide (SnO2) sensor material (hydrolysis of SnCl4 in basic solutions), a novel CVD strategy has been investigated to prepare highly sensitive SnO2 microspheres. SnCl2 was used as the precursor to form SnS2 microspheres, which was composed of single-crystal SnS2 sheet. Then, the sample was oxidized in air and transformed to polycrystalline SnO2 microspheres. BET surface area and BJH pore diameter were measured with nitrogen adsorption at 77.36 K on a Chemsorb-3000 instrument. X-ray diffraction (XRD) and transmission electron microscopy (TEM) results showed the sample had small grain size, which made it highly sensitive to ethanol. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：937 / 943
页数：7
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