Improved H2S sensing properties of Ag/TiO2 nanofibers

被引：46
|
作者：
Ma, Shuangfeng [1 ]
Jia, Jianfeng [1 ]
Tian, Yongtao [1 ]
Cao, Liangliang [2 ]
Shi, Shenlei [2 ]
Li, Xinjian [1 ]
Wang, Xinchang [1 ]
机构：
[1] Zhengzhou Univ, Sch Phys & Engn, Key Lab Mat Phys, Zhengzhou 450052, Peoples R China
[2] China Jiliang Univ, Dept Phys, Hangzhou 310018, Zhejiang, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2016年 / 42卷 / 01期
关键词：
TiO2; Sensors; Semiconductors; Nanofibers; Ag addition; SENSORS;
D O I：
10.1016/j.ceramint.2015.09.034
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Pristine and Ag nanoparticle modified TiO2 nanofibers were fabricated by an electrospinning technique using polyvinyl pyrrolidone (PVP) and tetrabutyl titanate as precursor. The morphology and structure of the as-synthesized nanofibers were characterized by scanning electron microscopy and X-ray diffraction. It was found that the presence of Ag had a significant effect on the morphology and crystal structure of TiO2 nanofibers, and that Ag addition could promote the phase transformation from anatase to rutile. H2S sensing properties of the sensors based on TiO2 nanofibers were also investigated. The results showed that Ag/TiO2 nanofibers exhibited better gas sensing performances than pristine TiO2 nanofibers and the possible sensing mechanism was discussed. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：2041 / 2044
页数：4
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