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DC Field | Value | Language |
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dc.citation.endPage | 15 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 6 | - |
dc.citation.title | JOURNAL OF CATALYSIS | - |
dc.citation.volume | 209 | - |
dc.contributor.author | Seok, Seung-Ho | - |
dc.contributor.author | Choi, Sun Hee | - |
dc.contributor.author | Park, Eun Duck | - |
dc.contributor.author | Han, Sung Hwan | - |
dc.contributor.author | Lee, Jae Sung | - |
dc.date.accessioned | 2023-12-22T11:37:28Z | - |
dc.date.available | 2023-12-22T11:37:28Z | - |
dc.date.created | 2015-07-23 | - |
dc.date.issued | 2002-07 | - |
dc.description.abstract | Based on previous observation that the addition of manganese onto Ni/Al2O3 catalysts reduced the coke formation in the carbon dioxide reforming of methane, effects of the preparation method for Mn-promoted Ni/Al2O3 catalysts on the catalytic activity and stability were investigated. A coprecipitated catalyst, Ni-MnOx/MnAl2O4, showed higher coke resistance and more stable activity than an impregnated Ni/MnO/gamma-Al2O3 catalyst and the well-known Ni0.03Mg0.97O catalyst at 923 K with a feed gas ratio CH4/CO2 of 1 without a diluent gas. In coprecipitated Ni-MnOx/MnAl2O4 catalysts, MnAl2O4, gamma-Al2O3, and Ni(0) were observed as major crystalline phases with XRD and potassium was detected on the surface with EPMA. Comparison of H-2 chemisorption and XRD suggested that the surface of large metallic nickel particles was partly blocked by manganese oxides, and the structure was confirmed by XAFS. For impregnated Ni/MnO/gamma-Al2O3 catalysts, addition of potassium stabilized its catalytic activity further, to the level achieved by coprecipitated Ni-MnOx/MnAl2O4 catalysts. These results indicate that very stable Ni/Al2O3 catalysts for the carbon dioxide reforming of methane can be prepared by addition of both potassium and manganese as promoters. (C) 2002 Elsevier Science (USA) | - |
dc.identifier.bibliographicCitation | JOURNAL OF CATALYSIS, v.209, no.1, pp.6 - 15 | - |
dc.identifier.doi | 10.1006/jcat.2002.3627 | - |
dc.identifier.issn | 0021-9517 | - |
dc.identifier.scopusid | 2-s2.0-0036316890 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/12534 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0021951702936274 | - |
dc.identifier.wosid | 000176501100002 | - |
dc.language | 영어 | - |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE | - |
dc.title.alternative | Mn-promoted Ni/Al2O3 catalysts for stable carbon dioxide reforming of methane | - |
dc.title | Mn-promoted Ni/Al2O3 catalysts for stable carbon dioxide reforming of methane | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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