XAFS study of Mn-Ni/Al2O3 catalyst for carbon dioxide reforming of methane
As an effective catalyst for carbon dioxide reforming of methane, manganese-promoted Ni/Al2O3 catalyst was studied with XAFS. The catalysts after the reduction above 1073 K contained the metallic nickel, and several phases of manganese were shown by XANES and EXAFS. Results of EXAFS curve fitting in...
| Veröffentlicht in: | Journal of synchrotron radiation. - 1999. - 8(2001), Pt 2 vom: 01. März, Seite 596-8 |
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| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2001
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| Zugriff auf das übergeordnete Werk: | Journal of synchrotron radiation |
| Schlagworte: | Journal Article |
| Zusammenfassung: | As an effective catalyst for carbon dioxide reforming of methane, manganese-promoted Ni/Al2O3 catalyst was studied with XAFS. The catalysts after the reduction above 1073 K contained the metallic nickel, and several phases of manganese were shown by XANES and EXAFS. Results of EXAFS curve fitting indicated that the surface of large metallic nickel particles was partly covered with patches of MnO and metallic Mn. Radial structure function (RSF) of Mn K-edge showed the peaks due to Mn-Ni scattering without Mn-Mn scattering, indicating that the metallic manganese was attached to nickel in a highly dispersed state. Separate manganese phase was also formed without interaction with nickel |
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| Beschreibung: | Date Completed 06.09.2001 Date Revised 05.06.2019 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 0909-0495 |