Walter, A. ; Hess, Christian ; Herbert, R. ; Ressler, T. (2007)
Structure of vanadium oxide catalysts supported on nanostructured SiO2.
Report, Bibliographie
Kurzbeschreibung (Abstract)
Investigating supported vanadium oxide catalysts has received much attention in recent years because of their activity and selectivity for several oxidation and dehydrogenation reactions of light alkanes [1]. Hence, it is very important to determine the type and structure of the vanadium oxide species involved. From Raman and X-ray absorption spectroscopy (XAS) experiments, it has been suggested that vanadium oxide on SiO2 is present in a hydrated state whose structure may be similar to that of V2O5. Here, vanadium oxide catalysts supported on SBA-15, a nanoporous siliceous molecular sieve having a high surface area (> 800 m2/g) were investigated by XAS. The aim of this study was to determine the structure of the hydrated state and the dehydrated state before and after thermal treatment, respectively.
| Typ des Eintrags: | Report |
|---|---|
| Erschienen: | 2007 |
| Autor(en): | Walter, A. ; Hess, Christian ; Herbert, R. ; Ressler, T. |
| Art des Eintrags: | Bibliographie |
| Titel: | Structure of vanadium oxide catalysts supported on nanostructured SiO2 |
| Sprache: | Englisch |
| Publikationsjahr: | 2007 |
| Verlag: | Deutsches Elektronen-Synchrotron DESY |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | HASYLAB Annual Reports |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Investigating supported vanadium oxide catalysts has received much attention in recent years because of their activity and selectivity for several oxidation and dehydrogenation reactions of light alkanes [1]. Hence, it is very important to determine the type and structure of the vanadium oxide species involved. From Raman and X-ray absorption spectroscopy (XAS) experiments, it has been suggested that vanadium oxide on SiO2 is present in a hydrated state whose structure may be similar to that of V2O5. Here, vanadium oxide catalysts supported on SBA-15, a nanoporous siliceous molecular sieve having a high surface area (> 800 m2/g) were investigated by XAS. The aim of this study was to determine the structure of the hydrated state and the dehydrated state before and after thermal treatment, respectively. |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie |
| Hinterlegungsdatum: | 17 Feb 2015 11:16 |
| Letzte Änderung: | 15 Feb 2024 13:04 |
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