Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17190
Title: Room-temperature resistive H 2 sensing response of Pd/WO 3 nanocluster-based highly porous film
Authors: Zhao, M
Huang, JX
Ong, CW 
Issue Date: 2012
Publisher: Institute of Physics Publishing
Source: Nanotechnology, 2012, v. 23, no. 31, 315503 How to cite?
Journal: Nanotechnology 
Abstract: Hydrogen- (H 2-) induced resistive response of palladium (Pd) coated tungsten oxide (WO 3) films prepared by using supersonic cluster beam deposition (SCBD) was investigated. An SCBD WO 3 film is found to be constructed of WO 3 nanoclusters of diameters of 3-5nm. The nanoclusters are loosely connected to form a structure of high porosity around 66%. With this structure, the film exhibits many excellent room-temperature H 2 sensing properties, including high sensitivity, broad detectable range of H 2 concentration, low detection limit, fast response rate, excellent cyclic stability (>2400 cycles), high selectivity against vapor of many organic compounds, mild ambient pressure dependence and many other advantages such as low power consumption, miniaturizability and high batch-to-batch reproducibility. These findings are useful for making new high-quality H 2 sensors for monitoring the leakage of H 2 and ensuring safe use of this gas.
URI: http://hdl.handle.net/10397/17190
ISSN: 0957-4484
EISSN: 1361-6528
DOI: 10.1088/0957-4484/23/31/315503
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