Improved H2 sensing properties of Co-doped SnO2 nanofibers

被引：108
作者：
Liu, Li [1 ]
Guo, Chuangchang [2 ]
Li, Shouchun [1 ]
Wang, Lianyuan [1 ]
Dong, Qiongye [3 ]
Li, Wei [1 ]
机构：
[1] Jilin Univ, Coll Phys, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
[2] Eleventh High Sch Changchun City, Changchun 130061, Peoples R China
[3] Jilin Univ, Coll Instrumentat & Elect Engn, Changchun 130012, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2010年 / 150卷 / 02期
关键词：
Electrospinning method; Nanofibers; Metal-oxide semiconductors; Gas sensors; GAS; SENSOR; METAL; ZNO; NANOBELTS; ARRAYS;
D O I：
10.1016/j.snb.2010.07.022
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Pure and Co-doped SnO2 nanofibers are synthesized via an electrospinning method and characterized by X-ray diffraction (XRD) scanning electron microscopy (SEM) and transmission electron microscope (TEM) Comparing with pure SnO2 nanofibers Co-doped SnO2 nanofibers exhibit improved H-2 sensing properties Among all the samples (pure 05 wt% 1 wt% and 3 wt% Co-doped SnO2 nanofibers) 1 wt% Co-doped SnO2 nanofibers show the highest response with very short response/recovery times The response is up to 24 when the corresponding sensor is exposed to 100 ppm H-2 at 330 C and the response and recovery times are 2 and 3s respectively Good selectivity is also observed in our investigation These results make Co-doped SnO2 nanofibers good candidates for fabricating high performance H-2 sensors in practical (C) 2010 Elsevier BV All rights reserved
引用
收藏
页码：806 / 810
页数：5
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