Open AccessStudy of the Acid Site Structure on the WO3/ZrO2 Surface
Author(s) -
В. В. Брей,
O.V. Melezhyk,
S.V. Prudius,
G. M. Tel’biz,
O. I. Oranska
Publication year - 2005
Publication title -
adsorption science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.682
H-Index - 36
eISSN - 2048-4038
pISSN - 0263-6174
DOI - 10.1260/0263617054037754
Subject(s) - chemistry , zirconium , adsorption , mesoporous material , diffuse reflection , inorganic chemistry , spectral line , mineralogy , catalysis , organic chemistry , optics , physics , astronomy
The IR and UV—vis diffuse reflectance spectra of mesoporous WO 3 /ZrO 2 are discussed and a scheme proposed for the acid site structure on the WO 3 /ZrO 2 surface. The high Brönsted acidity of WO 3 /ZrO 2 (H 0 ≤ −11.38) can be explained by the formation of large zirconium polytungstate species such as [≡ Zr 6 1/2+ W 6 6 +O 20 2− ] − H + on the WO 3 /ZrO 2 surface.
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