Hydrothermal synthesis of hierarchical flower-like SnO2 nanostructures with enhanced ethanol gas sensing properties

被引:64
作者
Zeng, Wen [1 ,2 ]
Zhang, He [1 ]
Li, Yanqiong [1 ]
Chen, Weigen [2 ]
Wang, Zhongchang [3 ]
机构
[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
[2] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China
[3] Tohoku Univ, Adv Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
关键词
Oxides; Chemical synthesis; Crystal growth; Nanostructures; Electrical properties; TIN OXIDE; HOLLOW SPHERES; SENSORS; MORPHOLOGIES; ADSORPTION; SINGLE; GROWTH; CO;
D O I
10.1016/j.materresbull.2014.05.019
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report the successful synthesis of two hierarchical tin oxide flower-like architectures via a simple yet facile hydrothermal method. Through a comprehensive characterization of microstructures and morphologies of the as-prepared products, we find that the flower-like nanostructures are assembled with nanorods and nanosheets. We further propose a possible growth mechanism for the two flower-like architectures. Moreover, the flower-like architecture assembled with the well-ordered nanosheets is found to display a significantly enhanced gas response to ethanol as compared to the one assembled with the nanorods. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:91 / 96
页数:6
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