期刊
JOURNAL OF CATALYSIS
卷 368, 期 -, 页码 69-78出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2018.09.025
关键词
Furfural; Furfuryl alcohol; Formic acid; Catalytic transfer hydrogenation; Nano Cu-Pd/C; Cu-Pd alloys
资金
- National Natural Science Fund of China [217762342, 21706223, 21676223]
- Natural Science Foundation of Fujian Province, China [2016J101077, 2018J101017]
- Fundamental Research Funds for the Central Universities [20720160087]
- Energy Development Foundation of Energy College [2017NYFZ02]
Catalytic transfer hydrogenation (CTH) of bio-derived furfural (FF) to furfuryl alcohol (FFA) was performed using the physically mixed CuO-Pd/C as catalyst and formic acid (FA) as hydrogen donor. The evolution investigation of Cu showed the precursor CuO firstly dissolved into Cu2+ by FA and then formed coordination polymer-copper(II), which uniformly dispersed in reaction solution of 1, 4-dioxane. Subsequently the Cu2+ was in-situ reduced and Cu-Pd alloys formed simultaneously. The in-situ prepared nano Cu-Pd/C catalyst exhibited the best performance with a complete FF conversion and FFA selectivity of 98.1%. Reaction conditions test suggested that the FFA selectivity was greatly dependent on the Cu content. The underlying mechanism revealed that the Pd in Cu-Pd alloys mainly promoted the FF conversion by enhancing hydrogen adsorption, while the nano Cu for increasing FFA selectivity; the Cu-Pd alloys functioned in synergistic way. Leaching and recycling tests demonstrated an excellent stability of the Cu-Pd/C catalyst. (C) 2018 Elsevier Inc. All rights reserved.
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