期刊
SOLID-STATE ELECTRONICS
卷 130, 期 -, 页码 20-27出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.sse.2017.01.005
关键词
Pt nanoparticles; SnO2 nanoflowers; Rod-like nanostructures; Gas sensor
资金
- National Natural Science Foundation of China [21571108]
- Applied Basic Research Programs of the Science and Technology Commission Foundation of Tianjin [14JCZDJC37100]
- MOE Innovation Team of China [IRT13022]
- NFFTBS [J1103306]
- 111 Project [B12015]
3D SnO2 nanoflowers (NFs) assembled by rod-like nanostructures were synthesized by a facile hydrothermal method only using simple and inexpensive SnCl4 center dot 5H(2)O and NaOH as the starting materials, without using any surfactants or templates. The as-synthesized 3D SnO2 NFs were further functionalized by Pt nanoparticles (NPs) by a simple ammonia precipitate method, and the derived Pt NP-functionalized 3D SnO2 NFs were further investigated for gas sensor application using ethanol as a probe gas. Obtained results showed that the Pt NP-functionalized 3D SnO2 NF sensor exhibited much higher response in comparison with pure SnO2 sensor, altogether with short response/recovery times and good reproducibility. The enhanced gas sensing performances could be attributed to spill-over effect of Pt NPs for promoting gas sensing reactions, the synergic electronic interaction between Pt NPs and SnO2 support, the high surface-to-volume ratio and good electron mobility of the 1D SnO2 nanorod units, and unique 3D hierarchical flower-like nanostructures. It is also expected that the as-prepared 3D SnO2 NFs and Pt NP-functionalized product can be used in other fields such as optoelectronic devices, Li-ion battery and dye sensitized solar cells. (C) 2017 Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据