期刊
JOURNAL OF CATALYSIS
卷 331, 期 -, 页码 193-202出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2015.08.020
关键词
Cinnamaldehyde; Selective hydrogenation; Sheetlike MMO; Positively charged center
资金
- National Natural Science Foundation of China [21203113]
Pt nanoparticles supported on sheetlike mixed metal oxides (MMO) derived from layered double hydroxides are found to be highly efficient catalysts for the selective hydrogenation of cinnamaldehyde. A series of characterizations are employed to investigate the structure and composition of the support and catalyst. Divalent species have a significant influence on the activity and selectivity. CoAl MMO-supported catalysts achieve an increase in both conversion and selectivity to cinnamyl alcohol through the formation of PtCo alloy on the surfaces of catalysts during preparation. A possible reaction path is proposed. The effects of Co/Al ratio and calcination temperature on catalytic performance are researched in this work. (C) 2015 Elsevier Inc. All rights reserved.
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