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Kwak, Ja Hun
Molecular Catalysis lab
Research Interests
  • Heterogeneous catalysis, molecular catalysis, ASlumima, zeolites

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Structure-dependent catalytic properties of mesoporous cobalt oxides in furfural hydrogenation

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dc.contributor.author Nguyen-Huy, Chinh ko
dc.contributor.author Lee, Jihyeon ko
dc.contributor.author Seo, Ji Hui ko
dc.contributor.author Yang, Euiseob ko
dc.contributor.author Lee, Jaekyoung ko
dc.contributor.author Choi, Keunsu ko
dc.contributor.author Lee, Hosik ko
dc.contributor.author Kim, Jae Hyung ko
dc.contributor.author Lee, Man Sig ko
dc.contributor.author Joo, Sang Hoon ko
dc.contributor.author Kwak, Ja Hun ko
dc.contributor.author Lee, Jun Hee ko
dc.contributor.author An, Kwangjin ko
dc.date.available 2019-07-22T09:03:43Z -
dc.date.created 2019-07-19 ko
dc.date.issued 2019-08 ko
dc.identifier.citation APPLIED CATALYSIS A-GENERAL, v.583, pp.117125 ko
dc.identifier.issn 0926-860X ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/27070 -
dc.description.abstract As the development of noble metal free catalysts became important in the biomass conversion, catalytic hydrogenation of furfural (FAL) is investigated over ordered mesoporous cobalt oxide (m-Co3O4). When m-Co3O4 is reduced at 350 and 500 °C in hydrogen, the original crystal structure of Co3O4 is changed to CoO and Co, respectively. Here we examine the effect of the structure, porosity, and oxidation state of m-Co3O4 to identify catalytically active species for hydrogenation of FAL. Among cobalt oxide catalysts having different crystal structures and symmetry, m-CoO having p6mm symmetry exhibits the highest activity. In product selectivity, the CoO phase induces FAL hydrogenolysis by selective production of 2-methyl furan (MF), while the Co3O4 and Co phases promote preferential hydrogenation of side chain (carbonyl group) of FAL to furfuryl alcohol. Density functional theory calculations also reveal that the adsorption of FAL on CoO(111) is higher than Co(111). Overall, these studies demonstrate that CoO as the most active phase is responsible for the high FAL conversion and the distinct pathway of FAL to MF. ko
dc.language 영어 ko
dc.publisher Elsevier BV ko
dc.title Structure-dependent catalytic properties of mesoporous cobalt oxides in furfural hydrogenation ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85068250948 ko
dc.identifier.wosid 000480377500010 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.apcata.2019.117125 ko
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S0926860X19302790 ko
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