Related Experiment Video
Updated: May 17, 2026
Preparation of Functional Silica Using a Bioinspired Method
Published on: August 1, 2018
Raman study of the formation of beta silicomolybdic acid supported on silica, prepared by impregnation method
Nguyen Huu Huy Phuc1, Hironobu Ohkita, Takanori Mizushima
1Department of Environmental and Life Sciences, Toyohashi University of Technology, 2-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan. nhhphuc@gmail.com
Abstract:
Beta silicomolibdic acid/silica (β-SMA, a metastable form of silicomolybdic acid - H(4)SiMo(12)O(40)) forms by the impregnation of fumed silica into molybdenum solution obtained by hydrolyzation of MoO(2)Cl(2.) β-SMA/silica is found to be stable up to 300 °C after calcination for 1h due to the existence of an interlayer MoO(3) between silica surface and β-SMA. Structures of molybdenum species in the preparation process (including precursor solution) were analyzed by Raman spectroscopy and XRD.
