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Enhancement in the metal efficiency of Ru/TiO2 catalyst for guaiacol hydrogenation via hydrogen spillover in the liquid phase
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Hyungjoo | - |
dc.contributor.author | Yang, Seungdo | - |
dc.contributor.author | Lim, Yong Hyun | - |
dc.contributor.author | Lee, Jaeha | - |
dc.contributor.author | Ha, Jeong-Myeong | - |
dc.contributor.author | Kim, Do Heui | - |
dc.date.accessioned | 2022-08-25T00:06:41Z | - |
dc.date.available | 2022-08-25T00:06:41Z | - |
dc.date.created | 2022-06-16 | - |
dc.date.issued | 2022-06 | - |
dc.identifier.citation | Journal of Catalysis, Vol.410, pp.93-102 | - |
dc.identifier.issn | 0021-9517 | - |
dc.identifier.uri | https://hdl.handle.net/10371/184370 | - |
dc.description.abstract | © 2022 Elsevier Inc.Decrease in the metal dispersion of noble-metal-loaded catalysts with high metal loading is a major factor reducing noble-metal efficiency. Herein, we investigated the enhancement in metal efficiency of Ru/TiO2 catalyst by utilizing hydrogen spillover in the liquid-phase. Ru was highly dispersed at low loadings (0.1 and 0.5 wt%), while larger nanoparticles were formed at higher loadings (1–5 wt%). The hydrogen spillover in liquid phase was activated at reaction temperature (100 °C) as the Ru dispersion decreased, which was confirmed through physical dilution experiments, hydrogen temperature-programmed-reduction, and kinetic analysis. Isotope experiment was conducted using D2O, observing inverse kinetic isotope effect (IKIE) for the high-Ru-loading catalysts. Based on the understanding of the hydrogen spillover in the liquid phase, the low metal efficiency of high-Ru-loading catalysts resulting from low dispersion could be compensated simply by physically mixing pristine TiO2, which played a role as new active sites when liquid-phase hydrogen spillover was activated. | - |
dc.language | 영어 | - |
dc.publisher | Academic Press | - |
dc.title | Enhancement in the metal efficiency of Ru/TiO2 catalyst for guaiacol hydrogenation via hydrogen spillover in the liquid phase | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.jcat.2022.04.017 | - |
dc.citation.journaltitle | Journal of Catalysis | - |
dc.identifier.wosid | 000799006500010 | - |
dc.identifier.scopusid | 2-s2.0-85129102433 | - |
dc.citation.endpage | 102 | - |
dc.citation.startpage | 93 | - |
dc.citation.volume | 410 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Kim, Do Heui | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
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