Precursor Effect on the Molecular Structure, Reactivity, and Stability of Alumina-Supported Vanadia Full article
| Journal |
The Journal of Physical Chemistry C
ISSN: 1932-7447 , E-ISSN: 1932-7455 |
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| Output data | Year: 2009, Volume: 113, Number: 48, Pages: 20648-20656 Pages count : 9 DOI: 10.1021/jp9057884 | ||||
| Tags | METAL-OXIDE CATALYSTS; TEMPERATURE-PROGRAMMED REDUCTION; DIFFUSE-REFLECTANCE SPECTROSCOPY; OXIDATIVE DEHYDROGENATION; RAMAN-SPECTROSCOPY; MODEL CATALYST; MONOLAYER CATALYSTS; GAMMA-ALUMINA; LIQUID-PHASE; SILICA | ||||
| Authors |
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| Affiliations |
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Funding (3)
| 1 | Russian Foundation for Basic Research | 07-03-00695 |
| 2 | Ministry of Economic Affairs and Digital Transformation | CTQ2008-02461/PPQ |
| 3 | North Atlantic Treaty Organization | ESP.NR. NRCLG 981857 |
Abstract:
This work studies the influence of specific vanadium precursors on alumina-supported vanadium oxide catalysts. Vanadyl sulfate, ammonium metavanadate, and vanadyl acetylacetonate were used as precursors. All catalysts have the same surface vanadium coverage (4 V atoms/nm2). The structural features of surface vanadium oxide species were studied by 51V-NMR, UV−vis, and Raman spectroscopy. The vanadium precursor determines the strength of interaction between supported VOx species and alumina. The reducibility of vanadium ions was estimated by conventional TPR/TPO cycles. The structural and electronic changes during reduction/oxidation cycles were studied by in situ Raman and UV−vis spectroscopy (TPR/TPO-Raman, TPR/TPO-UV−vis). Surface sulfate species reduce concomitantly to surface vanadium oxide species.
Cite:
Lewandowska A.E.
, Bañares M.A.
, Khabibulin D.F.
, Lapina O.B.
Precursor Effect on the Molecular Structure, Reactivity, and Stability of Alumina-Supported Vanadia
The Journal of Physical Chemistry C. 2009. V.113. N48. P.20648-20656. DOI: 10.1021/jp9057884 WOS Scopus РИНЦ ANCAN OpenAlex
Precursor Effect on the Molecular Structure, Reactivity, and Stability of Alumina-Supported Vanadia
The Journal of Physical Chemistry C. 2009. V.113. N48. P.20648-20656. DOI: 10.1021/jp9057884 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Jun 19, 2009 |
| Accepted: | Oct 2, 2009 |
| Published online: | Nov 9, 2009 |
| Published print: | Dec 3, 2009 |
Identifiers:
| Web of science: | WOS:000272038600020 |
| Scopus: | 2-s2.0-71149102086 |
| Elibrary: | 15297195 |
| Chemical Abstracts: | 2009:1382574 |
| Chemical Abstracts (print): | 151:516047 |
| OpenAlex: | W2011295554 |