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DC Field | Value | Language |
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dc.citation.endPage | 185 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 176 | - |
dc.citation.title | JOURNAL OF CATALYSIS | - |
dc.citation.volume | 193 | - |
dc.contributor.author | Choi, Sun Hee | - |
dc.contributor.author | Lee, Jae Sung | - |
dc.date.accessioned | 2023-12-22T12:07:23Z | - |
dc.date.available | 2023-12-22T12:07:23Z | - |
dc.date.created | 2015-07-27 | - |
dc.date.issued | 2000-07 | - |
dc.description.abstract | Alumina-supported palladium catalyst, which is active for the hydrogenation of 1,3-butadiene, was modified by tin using various tin precursors. The structure of modified catalysts was studied by XAFS and TPR. Before modification, palladium on alumina existed in an electron-deficient hydride state, which was revealed by a shift to a higher Pd K-edge energy in XANES and by an increased Pd-Pd distance in EXAFS fitting. However, tin modification caused the palladium edge energy to decrease to the value of zero valent palladium metal and destroyed the Pd ensembles by making Pd-Sn bonds, irrespective of the nature of tin precursor. This was responsible for the increased 1-butene selectivity in the hydrogenation of 1,3-butadiene in the presence of 1-butene. A carbonaceous species was formed in the catalyst modified with an organic tin precursor, while the inorganic tin modification produced a tin oxide-like species in addition to the formation of Sn-Pd bonds. (C) 2000 Academic Press | - |
dc.identifier.bibliographicCitation | JOURNAL OF CATALYSIS, v.193, no.2, pp.176 - 185 | - |
dc.identifier.doi | 10.1006/jcat.2000.2893 | - |
dc.identifier.issn | 0021-9517 | - |
dc.identifier.scopusid | 2-s2.0-0000078866 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/12691 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0021951700928938 | - |
dc.identifier.wosid | 000088488700002 | - |
dc.language | 영어 | - |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE | - |
dc.title.alternative | XAFS study of tin modification of supported palladium catalyst for 1,3-butadiene hydrogenation in the presence of 1-butene | - |
dc.title | XAFS study of tin modification of supported palladium catalyst for 1,3-butadiene hydrogenation in the presence of 1-butene | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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