Journal
INORGANIC AND NANO-METAL CHEMISTRY
Volume 48, Issue 12, Pages 599-606Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/24701556.2019.1567539
Keywords
Benzene hydrogenation; cyclohexene; polydopamine-modified MCM-41; hydrophilicity; ruthenium-lanthanum catalyst
Funding
- Hunan Provincial Natural Science Foundation of China [2017JJ5025]
- Project Foundation of Doctoral Scientific Research of Hunan Chemical Vocational Technology College [HNHY2018D02]
- Programs Foundation of Scientific Research of Hunan Provincial Education Department [14C0385]
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Polydopamine-modified MCM-41 was prepared by sodium periodate-induced polymerization. Ru-La supported on MCM-41 and polydopamine-modified MCM-41 catalysts were prepared by double solvent impregnation method and tested for benzene hydrogenation to cyclohexene. Polydopamine-modified MCM-41 supported Ru-La catalyst exhibits much higher hydrophilicity and more moderate catalytic activity than unmodified MCM-41 supported Ru-La catalyst. The higher hydrophilicity, more moderate catalytic activity, and long-range order of mesoporous structure are beneficial for improving cyclohexene selectivity on account of the promotion of the desorption and the inhibition of the adsorption of cyclohexene. 47.0% of cyclohexene yield was obtained over Ru-La supported on polydopamine-modified MCM-41 in benzene hydrogenation.
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