Structural Study of WO₃ and MoO₃ Compound Films in H₂ Gasochromism

Abstract:

Sol-gel tequnique was used to prepare disordered tungsten oxide and molybdenum oxide sols. A series ratio of W:Mo compound sols were obtained via mettalic powder co-peroxided by H₂O₂ as precursors in ethonal. Compound films were achieved by dip-coating method. Fourier Transform Infrared Spectroscopy, Raman Spectroscopy were taken to characterize the structure of these compound films. Uv-visible Spectroscopy was used to test the gasochromic property. The results showed that the gasochromics property was much different from that of pure tungsten oxide and molybdenum oxide sol-gel thin films. The effect was origined from the structrue alteration, which was not due to the spectrum superposition but the co-reaction of W and Mo.

• Periodical: Key Engineering Materials (Volume 537)
• Pages: 184-188
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.537.184
• Online since: January 2013
• Authors: Zeng Hai Zhang, Guang Ming Wu, Guo Hua Gao, Wei Feng, Xiao Bo Jin, Jun Shen
• Keywords: Compound Films, FT-IR, Gasochromism, MoO₃, RAMAN, WO₃

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