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Restructuring of silica supported vanadia during propane oxidative dehydrogenation studied by combined synchrotron radiation based in situ soft X-ray absorption and photoemission
| Content Provider | Scilit |
|---|---|
| Author | Hävecker, Michael Düngen, Pascal Buller, Saskia Knop-Gericke, Axel Trunschke, Annette Schlögl, Robert |
| Copyright Year | 2017 |
| Description | Journal: Catalysis, Structure & Reactivity A series of vanadia catalysts supported on mesoporous silica SBA-15 has been prepared with a loading in the range of 2–14 wt-% V and characterized under oxygen and propane oxidative dehydrogenation reaction conditions at elevated temperature up to 550 °C. In situ soft X-ray absorption spectra at the vanadium L- and oxygen K-edges and in situ synchrotron based X-ray photoemission spectra reveal a restructuring of vanadium species that results in an enhanced degree of dispersion of molecular vanadia species on the silica support. The impact of the X-ray beam on the XAS spectra of dispersed $V_{x}O_{y}$ species has been studied and a brief perspective of X-ray based electron spectroscopy as a probe in catalyst characterization is given. |
| Related Links | https://www.tandfonline.com/doi/pdf/10.1080/2055074X.2017.1287535?needAccess=true |
| Ending Page | 111 |
| Page Count | 8 |
| Starting Page | 104 |
| ISSN | 2055074X |
| e-ISSN | 20550758 |
| DOI | 10.1080/2055074x.2017.1287535 |
| Journal | Catalysis, Structure & Reactivity |
| Issue Number | 1-2 |
| Volume Number | 3 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2017-04-03 |
| Access Restriction | Open |
| Subject Keyword | Journal: Catalysis, Structure & Reactivity Applied Physics Oxidative Dehydrogenation (odh) Dynamic Surface Restructuring Near Edge X-ray Absorption Spectroscopy (nexafs) Ambient Pressure X-ray Photoemission (ap-xps) |
| Content Type | Text |
