Nonaqueous synthesis of Pd-functionalized SnO2/In2O3 nanocomposites for excellent butane sensing properties

被引:21
作者
Dong, Chengjun [1 ,2 ]
Jiang, Ming [1 ]
Tao, You [1 ]
Shen, YuanYuan [1 ]
Lu, Yixuan [1 ]
Yuan, Ye [1 ]
Wang, Yude [1 ,2 ]
机构
[1] Yunnan Univ, Dept Mat Sci & Engn, Kunming 650091, Yunnan, Peoples R China
[2] Yunnan Univ, Int Joint Ctr Natl Optoelect Energy Mat, Kunming 650091, Yunnan, Peoples R China
基金
中国国家自然科学基金;
关键词
Nonaqueous synthesis; Pd-functionalized SnO2/In2O3; nanocomposites; Butane; Gas sensor; Selectivity; GAS SENSOR; OXIDE; NANOPARTICLES; METAL; PERFORMANCE; NANOSTRUCTURES; NANOFIBERS; NANOSHEETS; NANOTUBES; NIO;
D O I
10.1016/j.snb.2017.10.175
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This article reports a new option, SnO2/In2O3 nanocomposites, for butane detection synthesized by a simple nonaqueous synthesis. A small particle of 3-5 nm and a high specific surface area (around 123.47 m(2)/g) are obtained. To further enhance the sensing properties, a wide Pd functionalization was investigated. It is revealed that the as-synthesized 7 at% Pd-functionalized SnO2/In2O3 nanocomposites exhibits high response of 71.28 towards 3000 ppm butane at optimal operating temperature of 320 degrees C. Furthermore, rapid response (3.51 s) and recovery (7.86 s) time, wide detection range (1-3000 ppm), and good selectivity in general flammable gases are observed. Besides the native nature of both SnO2 and In2O3, the excellent sensing properties can be plausibly explained by the synergistic effects arising from the simultaneous presence of these multiple functional materials, i.e. the high specific surface area, the formation of the heterojunctions, the mutual doping effect, and the influence of Pd nanoparticles. (c) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:419 / 426
页数:8
相关论文
共 36 条
[1]  
Biswas S. K., 2017, SENSOR ACTUAT B-CHEM, V133, P449
[2]   TiO2 nanoparticles functionalized by Pd nanoparticles for gas-sensing application with enhanced butane response performances [J].
Chen, Nan ;
Deng, Dongyang ;
Li, Yuxiu ;
Liu, Xu ;
Xing, Xinxin ;
Xiao, Xuechun ;
Wang, Yude .
SCIENTIFIC REPORTS, 2017, 7
[3]   Indium-doped SnO2 nanoparticle-graphene nanohybrids: simple one-pot synthesis and their selective detection of NO2 [J].
Cui, Shumao ;
Wen, Zhenhai ;
Mattson, Eric C. ;
Mao, Shun ;
Chang, Jingbo ;
Weinert, Michael ;
Hirschmugl, Carol J. ;
Gajdardziska-Josifovska, Marija ;
Chen, Junhong .
JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (14) :4462-4467
[4]   Enhanced formaldehyde sensing performance of 3D hierarchical porous structure Pt-functionalized NiO via a facile solution combustion synthesis [J].
Dong, Chengjun ;
Li, Qing ;
Chen, Gang ;
Xiao, Xuechun ;
Wang, Yude .
SENSORS AND ACTUATORS B-CHEMICAL, 2015, 220 :171-179
[5]   Band structure of indium oxide: Indirect versus direct band gap [J].
Erhart, Paul ;
Klein, Andreas ;
Egdell, Russell G. ;
Albe, Karsten .
PHYSICAL REVIEW B, 2007, 75 (15)
[6]   Hydrothermal synthesis of hollow ZnSnO3 microspheres and sensing properties toward butane [J].
Fan, Huitao ;
Zeng, Yi ;
Xu, Xiujuan ;
Lv, Ning ;
Zhang, Tong .
SENSORS AND ACTUATORS B-CHEMICAL, 2011, 153 (01) :170-175
[7]   Metal and metal oxide nanoparticles in chemiresistors: Does the nanoscale matter? [J].
Franke, ME ;
Koplin, TJ ;
Simon, U .
SMALL, 2006, 2 (01) :36-50
[8]   Enhanced Gas Sensing Performance of Electrospun Pt-Functionalized NiO Nanotubes with Chemical and Electronic Sensitization [J].
Fu, Jiecai ;
Zhao, Changhui ;
Zhang, Junli ;
Peng, Yong ;
Xie, Erqing .
ACS APPLIED MATERIALS & INTERFACES, 2013, 5 (15) :7410-7416
[9]   Anisotropically structured magnetic aerogel monoliths [J].
Heiligtag, Florian J. ;
Leccardi, Marta J. I. Airaghi ;
Erdem, Derya ;
Sueess, Martin J. ;
Niederberger, Markus .
NANOSCALE, 2014, 6 (21) :13213-13221
[10]   Highly conductive coaxial SnO2-In2O3 heterostructured nanowires for li ion battery electrodes [J].
Kim, Dong-Wan ;
Hwang, In-Sung ;
Kwon, S. Joon ;
Kang, Hae-Yong ;
Park, Kyung-Soo ;
Choi, Young-Jin ;
Choi, Kyoung-Jin ;
Park, Jae-Gwan .
NANO LETTERS, 2007, 7 (10) :3041-3045