Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 서정길 | - |
dc.date.accessioned | 2022-08-05T05:01:37Z | - |
dc.date.available | 2022-08-05T05:01:37Z | - |
dc.date.issued | 2020-11 | - |
dc.identifier.citation | CATALYSTS, v. 10, no. 11, article no. 1354, page. 1354-1373 | en_US |
dc.identifier.issn | 2073-4344 | - |
dc.identifier.uri | https://www.mdpi.com/2073-4344/10/11/1354 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/172155 | - |
dc.description.abstract | gamma-valerolactone (GVL) is an important value-added chemical with potential applications as a fuel additive, a precursor for valuable chemicals, and polymer synthesis. Herein, different monometallic and bimetallic catalysts supported on gamma-Al2O3 nanofibers (Ni, Cu, Co, Ni-Cu, Ni-Co, Cu-Co) were prepared by the incipient wetness impregnation method and employed in the solvent-free hydrogenation of levulinic acid (LA) to GVL. The influence of metal loading, metal combination, and ratio on the activity and selectivity of the catalysts was investigated. XRD, SEM-EDS, TEM, H-2-TPR, XPS, NH3-TPD, and N-2 adsorption were used to examine the structure and properties of the catalysts. In this study, GVL synthesis involves the single-step dehydration of LA to an intermediate, followed by hydrogenation of the intermediate to GVL. Ni-based catalysts were found to be highly active for the reaction. [2:1] Ni-Cu/Al2O3 catalyst showed 100.0% conversion of LA with ˃99.0% selectivity to GVL, whereas [2:1] Ni-Co/Al2O3 yielded 100.0% conversion of LA with 83.0% selectivity to GVL. Moreover, reaction parameters such as temperature, H-2 pressure, time, and catalyst loading were optimized to obtain the maximum GVL yield. The solvent-free hydrogenation process described in this study propels the future industrial production of GVL from LA. | en_US |
dc.description.sponsorship | This work was supported by the Energy Efficiency and Resources Program (No. 20183030092080) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2020R1A5A1019131). | en_US |
dc.language.iso | en | en_US |
dc.publisher | MDPI | en_US |
dc.subject | hydrogenation | en_US |
dc.subject | alumina nanofiber | en_US |
dc.subject | bimetallic catalysts | en_US |
dc.subject | levulinic acid | en_US |
dc.subject | γ-valerolactone | en_US |
dc.title | Supported Bimetallic Catalysts for the Solvent-Free Hydrogenation of Levulinic Acid to gamma-Valerolactone: Effect of Metal Combination (Ni-Cu, Ni-Co, Cu-Co) | en_US |
dc.type | Article | en_US |
dc.relation.no | 11 | - |
dc.relation.volume | 10 | - |
dc.identifier.doi | 10.3390/catal10111354 | - |
dc.relation.page | 1354-1373 | - |
dc.relation.journal | CATALYSTS | - |
dc.contributor.googleauthor | Gebresillase, Mahlet N. | - |
dc.contributor.googleauthor | Raguindin, Reibelle Q. | - |
dc.contributor.googleauthor | Kim, Hern | - |
dc.contributor.googleauthor | Seo, Jeong Gil | - |
dc.relation.code | 2020052924 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF CHEMICAL ENGINEERING | - |
dc.identifier.pid | jgseo | - |
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