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

页码：806 / 810

页数：5

共 35 条

[1] Bae HY, 1999, SENSOR ACTUAT B-CHEM, V55, P47, DOI 10.1016/S0925-4005(99)00038-6
[2] Metal oxide-based gas sensor research: How to?
Barsan, N.
Koziej, D.
Weimar, U.
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2007, 121 (01) : 18 - 35
[3] Oxygen influence on the interaction mechanisms of ozone on SnO2 sensors
Berry, L.
Brunet, J.
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2008, 129 (01) : 450 - 458
[4] Data analysis and aging in phosphorescent oxygen-based sensors
Cai, Yuankun
Smith, Alex
Shinar, Joseph
Shinar, Ruth
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2010, 146 (01): : 14 - 22
[5] Electrical and CO gas sensing properties of layered ZnO-CuO sensor
Choi, JD
Choi, GM
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2000, 69 (1-2) : 120 - 126
[6] CHOI KI, 2010, SENSOR ACTUAT B-CHEM, V146, P40
[7] Sensing properties of SnO2-Co3O4 composites to CO and H2
Choi, US
Sakai, G
Shimanoe, K
Yamazoe, N
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2004, 98 (2-3) : 166 - 173
[8] Nanowire nanosensors for highly sensitive and selective detection of biological and chemical species
Cui, Y
Wei, QQ
Park, HK
Lieber, CM
[J]. SCIENCE, 2001, 293 (5533) : 1289 - 1292
[9] SWNT growth by CVD on Ferritin-based iron catalyst nanoparticles towards CNT sensors
Durrer, L.
Helbling, T.
Zenger, C.
Jungen, A.
Stampfer, C.
Hierold, C.
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2008, 132 (02) : 485 - 490
[10] FORLEO A, 2010, SENSOR ACTUAT B-CHEM, V146, P40

← 1 2 3 4 →