| Autor: |
Haiko Wittkämper, Rainer Hock, Matthias Weißer, Johannes Dallmann, Carola Vogel, Narayanan Raman, Nicola Taccardi, Marco Haumann, Peter Wasserscheid, Tzung-En Hsieh, Sven Maisel, Michael Moritz, Christoph Wichmann, Johannes Frisch, Mihaela Gorgoi, Regan G. Wilks, Marcus Bär, Mingjian Wu, Erdmann Spiecker, Andreas Görling, Tobias Unruh, Hans-Peter Steinrück, Christian Papp |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2045-2322 |
| DOI: |
10.1038/s41598-023-31157-y |
| Popis: |
Abstract Isolated active sites have great potential to be highly efficient and stable in heterogeneous catalysis, while enabling low costs due to the low transition metal content. Herein, we present results on the synthesis, first catalytic trials, and characterization of the Ga9Rh2 phase and the hitherto not-studied Ga3Rh phase. We used XRD and TEM for structural characterization, and with XPS, EDX we accessed the chemical composition and electronic structure of the intermetallic compounds. In combination with catalytic tests of these phases in the challenging propane dehydrogenation and by DFT calculations, we obtain a comprehensive picture of these novel catalyst materials. Their specific crystallographic structure leads to isolated Rhodium sites, which is proposed to be the decisive factor for the catalytic properties of the systems. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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