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dc.contributor.author서영웅-
dc.date.accessioned2019-11-30T05:21:28Z-
dc.date.available2019-11-30T05:21:28Z-
dc.date.issued2017-09-
dc.identifier.citationCATALYSTS, v. 7, no. 9, Article no. 249en_US
dc.identifier.issn2073-4344-
dc.identifier.urihttps://www.mdpi.com/2073-4344/7/9/249-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/115421-
dc.description.abstractA long-chain hydrocarbon biofuel of jet fuel range can be produced via aldol condensation of fermented products such as acetone and alcohols over the catalysts containing both metallic sites for the dehydrogenation of alcohols and basic sites for the condensation reaction. However, an efficient catalyst system has not been studied widely yet the route is promising for biofuel production. In this work, Cu catalysts supported on ceria-zirconia (Cu/xCeZr) were prepared using coprecipitated CexZr1-xO(2) supports with different Ce/Zr ratios for the cross-aldol condensation of acetone and n-butanol into mono-and di-alkylated aliphatic ketones, 2-heptanone and 6-undecanone. The acetone conversion and 6-undecanone selectivity increased with specific Cu surface area due to formation of the dehydrogenation product butyraldehyde at a higher concentration. The total yield of cross-aldol condensation products was strongly dependent on a combination of Cu sites and basic sites. This was confirmed by the results in the reaction between acetone and butyraldehyde over supported Cu catalysts that additionally examined the adsorbed acyl species on Cu surface taking part in the aldol condensation reaction. The best catalytic performance was achieved with Cu/0.8CeZr showing the largest Cu surface and the highest base site density among Cu/xCeZr catalysts. While the activity of Cu/0.8CeZ was comparable to or a little higher than that of Cu/MgO, the former catalyst was more stable than the latter suffering from the transformation of MgO to Mg(OH) (2) by the reaction. Consequently, it is suggested that Cu supported on ceria-zirconia of ceria rich contains such a dual function that it can efficiently catalyze the cross-aldol condensation of acetone and n-butanol.en_US
dc.description.sponsorshipThe authors acknowledge the financial support from the New & Renewable Energy Core Technology Program through the Korea Institute of Energy Technology Evaluation and Planning under the Ministry of Trade, Industry & Energy, Republic of Korea (KETEP-20143030091040), and from the Basic Science Research Program through the National Research Foundation of Korea under the Ministry of Education (NRF-2016R1A6A1A03013422). The former funding source covers the cost to publish in open access.en_US
dc.language.isoen_USen_US
dc.publisherMDPI AGen_US
dc.subjectcopperen_US
dc.subjectceria-zirconiaen_US
dc.subjectdehydrogenationen_US
dc.subjectcross-aldol condensationen_US
dc.subjectbasic sitesen_US
dc.titleCross-Aldol Condensation of Acetone and n-Butanol into Aliphatic Ketones over Supported Cu Catalysts on Ceria-Zirconiaen_US
dc.typeArticleen_US
dc.relation.no9-
dc.relation.volume7-
dc.identifier.doi10.3390/catal7090249-
dc.relation.page249-262-
dc.relation.journalCATALYSTS-
dc.contributor.googleauthorKim, Minseok-
dc.contributor.googleauthorPark, Jongha-
dc.contributor.googleauthorKannapu, Hari Prasad Reddy-
dc.contributor.googleauthorSuh, Young-Woong-
dc.relation.code2017007272-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF CHEMICAL ENGINEERING-
dc.identifier.pidywsuh-
dc.identifier.orcidhttp://orcid.org/0000-0002-2094-0724-


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