Effects of preparation conditions on the CO methanation performance of Co-Mo carbide catalysts
DC Field | Value | Language |
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dc.contributor.author | Kim, Jae-Min | - |
dc.contributor.author | Kim, Sung-Hyun | - |
dc.contributor.author | Park, Sung-Youl | - |
dc.contributor.author | Kim, Seong-Soo | - |
dc.contributor.author | Lee, Seung-Jae | - |
dc.date.accessioned | 2021-08-31T20:24:22Z | - |
dc.date.available | 2021-08-31T20:24:22Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2019-12-14 | - |
dc.identifier.issn | 0009-2509 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/60923 | - |
dc.description.abstract | We prepared activated charcoal-supported Co-Mo carbide catalysts to investigate the effects of solution pH and initial Co/Mo molar ratio. In the absence of Co, no Mo adsorption was observed at pH above the pH(zpc) of AC, whereas the introduction of Co at pH > 6 resulted in the co-precipitation of Mo and Co and facilitated Mo adsorption. CO conversions for CO methanation at 400 degrees C and 30 bar achieved over samples prepared at pH 3 were initially high but decreased with increasing reaction time, whereas CO conversions were maintained at >90% with increasing reaction time for samples prepared at pH > 6. XPS analysis of these high-performance catalysts revealed that the predominant state of surface Mo was Mo-0 rather than Mo4+ and Mo6+. Catalysts with maximum methanation activity, i.e., those with the highest surface Mo-0 content, were obtained at pH 7 and an initial Co/Mo molar ratio of 1.0. (C) 2019 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | SUPPORTED MOLYBDENUM CARBIDE | - |
dc.subject | MIXED ALCOHOLS SYNTHESIS | - |
dc.subject | ACTIVATED CARBON | - |
dc.subject | SURFACE-AREA | - |
dc.subject | CHEMICAL-STATE | - |
dc.subject | COBALT | - |
dc.subject | ADSORPTION | - |
dc.subject | POTASSIUM | - |
dc.subject | HYDRODENITROGENATION | - |
dc.subject | HYDRODESULFURIZATION | - |
dc.title | Effects of preparation conditions on the CO methanation performance of Co-Mo carbide catalysts | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Sung-Hyun | - |
dc.identifier.doi | 10.1016/j.ces.2019.115219 | - |
dc.identifier.scopusid | 2-s2.0-85072271563 | - |
dc.identifier.wosid | 000502087500014 | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING SCIENCE, v.209 | - |
dc.relation.isPartOf | CHEMICAL ENGINEERING SCIENCE | - |
dc.citation.title | CHEMICAL ENGINEERING SCIENCE | - |
dc.citation.volume | 209 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | SUPPORTED MOLYBDENUM CARBIDE | - |
dc.subject.keywordPlus | MIXED ALCOHOLS SYNTHESIS | - |
dc.subject.keywordPlus | ACTIVATED CARBON | - |
dc.subject.keywordPlus | SURFACE-AREA | - |
dc.subject.keywordPlus | CHEMICAL-STATE | - |
dc.subject.keywordPlus | COBALT | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | POTASSIUM | - |
dc.subject.keywordPlus | HYDRODENITROGENATION | - |
dc.subject.keywordPlus | HYDRODESULFURIZATION | - |
dc.subject.keywordAuthor | Cobalt molybdenum carbide | - |
dc.subject.keywordAuthor | Activated charcoal | - |
dc.subject.keywordAuthor | Wet impregnation | - |
dc.subject.keywordAuthor | pH | - |
dc.subject.keywordAuthor | Initial Co/Mo molar ratio | - |
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