129Xe NMR Study of 12-Tungstophosphoric Heteropoly Acid Supported on Silica Full article
Journal |
Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X |
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Output data | Year: 1996, Volume: 42, Number: 1-2, Pages: 99-104 Pages count : 6 DOI: 10.1007/BF00814473 | ||
Tags | 129Xe NMR, Adsorbed xenon, Heteropoly acid, Microporosity, Silica | ||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Foundation for Basic Research | 93-03-04774 |
Abstract:
The structure of 12-tungstophosphoric heteropoly acid (H3PW12O40) supported on silica has been studied by 129Xe NMR of adsorbed xenon. The 129Xe NMR spectra are found to depend on the surface HPA concentration. The 129Xe NMR data provide evidence for the presence of an organized microporous structure within HPA overlayers. These results are in agreement with nitrogen adsorption and capillary condensation (77 K) measurements. The high sensitivity of the 129Xe NMR method and its applicability for testing of silica-based HPA catalysts are demonstrated.
Cite:
Terskikh V.V.
, Mastikhin V.M.
, Timofeeva M.N.
, Okkelʹ L.G.
, Fenelonov V.B.
129Xe NMR Study of 12-Tungstophosphoric Heteropoly Acid Supported on Silica
Catalysis Letters. 1996. V.42. N1-2. P.99-104. DOI: 10.1007/BF00814473 WOS Scopus РИНЦ
129Xe NMR Study of 12-Tungstophosphoric Heteropoly Acid Supported on Silica
Catalysis Letters. 1996. V.42. N1-2. P.99-104. DOI: 10.1007/BF00814473 WOS Scopus РИНЦ
Dates:
Submitted: | May 9, 1996 |
Accepted: | Aug 14, 1996 |
Published print: | Nov 1, 1996 |
Identifiers:
Web of science | WOS:A1996VV98000015 |
Scopus | 2-s2.0-0009196670 |
Elibrary | 13222452 |
Chemical Abstracts | 1996:714776 |
Chemical Abstracts (print) | 126:23338 |
OpenAlex | W2062314215 |