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  Direct correlation of the dispersion and structure in vanadium oxide supported on silica SBA-15

Hess, C. (2007). Direct correlation of the dispersion and structure in vanadium oxide supported on silica SBA-15. Journal of Catalysis, 248(1), 120-123. doi:10.1016/j.jcat.2007.02.024.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-0141-D Version Permalink: https://hdl.handle.net/21.11116/0000-0006-3FE4-3
Genre: Journal Article

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 Creators:
Hess, Christian1, Author           
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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Free keywords: vanadium oxide, silica, water, dispersion, structure, UV-Vis, Raman, XPS, SBA-15 Vanadia in selective oxidation
 Abstract: Raman, UV-Vis and X-ray photoelectron spectroscopy were combined in one experimental setup to directly study the interplay between structure and dispersion of SBA-15 supported vanadium oxide during dehydration. The fully hydrated catalyst is slightly reduced but consists mainly of V5+ species with pseudo-octahedral V coordination strongly resembling the xerogel V2O5•1.2H2O. After dehydration a highly dispersed surface vanadium oxide species with tetrahedrally coordinated vanadium and significantly smaller ensemble size is formed.

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Language(s): eng - English
 Dates: 2007-03-28
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 315171
DOI: 10.1016/j.jcat.2007.02.024
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Title: Journal of Catalysis
  Alternative Title : J. Catal.
Source Genre: Journal
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Pages: - Volume / Issue: 248 (1) Sequence Number: - Start / End Page: 120 - 123 Identifier: -