Lanthanum oxide @ antimony-doped tin oxide with high gas sensitivity and selectivity towards ethanol vapor
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- 作者：Mengyun Wanga ; 1Author Vitae ; Lianfeng Zhua ; 1Author Vitae ; Changyue ZhangaAuthor Vitae ; Guosheng GaibAuthor Vitae ; Xuewen JicAuthor Vitae ; Baohua LiaAuthor Vitae ; Youwei Yaoa ; yw_yao@yahoo.com" class="auth_mail" title="E-mail the corresponding author ; yaoyw@sz.tsinghua.edu.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Ethanol ; Gas sensor ; SnO2 ; Selectivity ; Basic catalysis
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2016
- 出版时间：1 March 2016
- 年：2016
- 卷：224
- 期：Complete
- 页码：478-484
- 全文大小：2212 K
文摘
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The La2O3@Sb-SnO2 was found to be highly sensitive and selective towards ethanol vapor.
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Typically, under optimized operating temperature of 250, the sensitivities of La2O3@Sb-SnO2 towards 1000 ppm of ethanol vapor and CO were 59.8 and 2.77, the ratio was 21.6.
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The high sensitivity of La2O3@Sb-SnO2 towards ethanol vapor is suggested to be attributed by the barrier depression of p–n junction, while its anti-interference towards CO is maybe mainly due to the strongly basic of La2O3.