Preparation and characterization of gasochromic Pt/WO3 hydrogen sensor by using the Taguchi design method

Chih Chieh Chan, Chia Wen Hsu, Chung Chieh Chang, Chao Sheng Hsu

研究成果: 雜誌貢獻文章同行評審

51 引文 斯高帕斯(Scopus)

摘要

In the present work, nanostructured WO3 films were prepared by the sol-gel spin coating method. The as-prepared films were annealed at different temperatures and their structures were characterized by field-emission scanning electron microscopy and X-ray diffraction. A layer of platinum (Pt) was then sputtered onto the surface of WO3 films. The coloring/bleaching kinetics was evaluated by alternate exposures to H2-N2 mixture and air. The cycling change of coloration was obtained from the UV-vis spectra. The Pt/WO3 thin films exhibited excellent gasochromic performance with good coloration change and fast response rate under ambient condition. Taguchi's experimental design approach was employed for conducting the experiments to study the influences of process parameters, such as annealing temperature, thicknesses of Pt catalyst and WO3 films, on the gasochromic performance. The stability of the gasochromic Pt/WO3 film was also evaluated by the switching cycle-life test.
原文英語
頁(從 - 到)691-697
頁數7
期刊Sensors and Actuators, B: Chemical
145
發行號2
DOIs
出版狀態已發佈 - 3月 19 2010
對外發佈

ASJC Scopus subject areas

  • 儀器
  • 材料化學
  • 表面、塗料和薄膜
  • 金屬和合金
  • 電子、光磁材料
  • 凝聚態物理學
  • 電氣與電子工程

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