Benzene hydrogenation over polydopamine-modified MCM-41 supported Ruthenium-Lanthanum catalyst

被引:4
|
作者
Liao, Hongguang [1 ]
Xiao, Yanjuan [1 ]
Yu, Xiaoguang [1 ]
Liu, Xuanyan [1 ]
Zhong, Hongmei [1 ]
Liang, Meidong [1 ]
He, Haoyan [1 ]
机构
[1] Hunan Chem Vocat Technol Coll, Coll Chem Engn, Zhuzhou 412000, Hunan, Peoples R China
关键词
Benzene hydrogenation; cyclohexene; polydopamine-modified MCM-41; hydrophilicity; ruthenium-lanthanum catalyst; SELECTIVE HYDROGENATION; UNDERWATER SUPEROLEOPHOBICITY; CYCLOHEXENE; RU; PERFORMANCE; NANOPARTICLES; ZN; OXIDATION; SIZE; ADDITIVES;
D O I
10.1080/24701556.2019.1567539
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
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.
引用
收藏
页码:599 / 606
页数:8
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