期刊
CERAMICS INTERNATIONAL
卷 40, 期 10, 页码 16343-16348出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.07.073
关键词
B. Nanocomposite; D. TiO2 nanotubes; Pd nanoparticles; Hydrogen sensor
资金
- Guangxi Key Laboratory of Information Materials [PF13115X]
- National Science Foundation of China [51201041, 51201042, 51071146, 21173111, 51101144, 51361005, 51371060]
- GXNSFC [2013GXNSFCA019006, 2013GXNSFBA019243]
- [2010CB31303]
A novel room-temperature hydrogen sensor with improved performance has been developed and tested. The detection of hydrogen using anodic TiO2 nanotubes is significantly enhanced by employing Pd nanoparticles in the system due to Schottky bather. The morphological, chemical and electrochemical properties of the Pd/TiO2 nanocomposite materials were characterized using scanning electron microscopy (SEM), X-ray diffraction and current voltage measurements. The performance of this hydrogen sensing material has been evaluated in air. The result has demonstrated that it is capable of providing fast response and selective detection with good reproducibility and short recovery time at room temperature. The detection was observed to be non-inference by the presence of other gases such as CO2, CH4 and NH3, which could be very useful in real-to-life applications. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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