Preparation of Pt/SnO2 Core-Shell Nanowires with Enhanced Ethanol Gas- and Photon-Sensing Properties

被引:13
|
作者
Lin, Yu-Hung [1 ]
Hsueh, Yang-Chih [1 ]
Lee, Po-Sheng [1 ]
Wang, Chih-Chieh [1 ]
Chen, Jiann-Ruey [1 ]
Wu, Jyh-Ming [2 ]
Perng, Tsong-Pyng [1 ]
Shih, Han C. [1 ,3 ]
机构
[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
[2] Feng Chia Univ, Dept Mat Sci & Engn, Taichung 407, Taiwan
[3] Chinese Culture Univ, Inst Mat Sci & Nanotechnol, Taipei 111, Taiwan
关键词
ATOMIC LAYER DEPOSITION; SNO2; NANOWIRES; OXIDE;
D O I
10.1149/1.3464800
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Pt/SnO2 core-shell nanowires were prepared by a process that involves thermal evaporation of SnO2 nanowires and subsequent atomic layer deposition of Pt, and their gas- and photon-sensing properties were investigated systematically. Transmission electron microscopy analysis showed that the Pt shell with a thickness of 8.8 nm is composed of numerous Pt nanoparticles with average diameters of similar to 5.3 nm. The Pt/SnO2 core-shell nanowires with high electrical conductance exhibit remarkably enhanced ethanol gas-and photon-sensing properties due to the surface functionalization resulting from the effective Pt catalyst and the formation of hetero-nanostructures fabricated by the SnO2 core and Pt shell. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3464800] All rights reserved.
引用
收藏
页码:K206 / K210
页数:5
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