A novel route involving atmospheric pressure chemical vapour deposition (APCVD) is reported for coating Nb2O5 onto glass substrates via the reaction of NbCl5 and ethyl acetate at 400-660degreesC. Raman spectroscopy is shown to be a simple diagnostic tool for the analysis of these thin films. The contact angle of water on Nb2O5-coated glass drops on UV irradiation from 60degrees to 5-20degrees. XPS Analysis showed that the Nb:O ratio of the film was 1:2.5. Glancing angle X-ray diffraction showed that all films were crystalline, with only a single phase being observed; this has some preferred orientation in the (201) plane of Nb2O5. The niobium(V) oxide materials show minimal photocatalytic ability to degrade organic material.
- NIOBIUM OXIDE CATALYSTS
- SOL-GEL PROCESS
O'Neill, S. A., Parkin, I. P., Clark, R. J. H., Mills, A., & Elliott, N. (2003). Atmospheric pressure chemical vapour deposition of thin films of Nb2O5 on glass. Journal of Materials Chemistry, 13(12), 2952-2956. https://doi.org/10.1039/b307768n