Catalytic hydrogenation of 2,3,5-trimethylbenzoquinone over Pd nanoparticles confined in the cages of MIL-101(Cr)

被引：62
|
作者：
Zhao, Xiaomin [1 ]
Jin, Yan [1 ]
Zhang, Fumin [1 ]
Zhong, Yijun [1 ]
Zhu, Weidong [1 ]
机构：
[1] Zhejiang Normal Univ, Inst Phys Chem, Key Lab, Minist Educ Adv Catalysis Mat, Jinhua 321004, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2014年 / 239卷
基金：
中国国家自然科学基金;
关键词：
Metal-organic frameworks; Pd catalyst; 2,3,5-Trimethylbenzoquinone; 2,3,5-Trimethylhydroquinone; Catalytic hydrogenation; METAL-ORGANIC FRAMEWORKS; PALLADIUM NANOPARTICLES; PHOSPHOTUNGSTIC ACID; SELECTIVE OXIDATION; EFFICIENT CATALYST; CLOFIBRIC ACID; ARYL CHLORIDES; CARBON-DIOXIDE; VITAMIN-E; ADSORPTION;
D O I：
10.1016/j.cej.2013.11.003
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A series of Pd@MIL-101(Cr) catalysts with different Pd loadings were prepared by incorporating Pd nanoparticles into the highly porous and hydrothermally stable metal-organic framework MIL-101(Cr) via an incipient-wetness impregnation method and then characterized by XRD, N-2 adsorption, CO chemisorption, XPS, and TEM techniques as well as by the elemental analysis. These prepared catalysts were applied in the catalytic hydrogenation of 2,3,5-trimethylbenzoquinone (TMBQ) to 2,3,5-trimethylhydroquinone (TMHQ) in a high-pressure batch reactor. The results reveal that the intrinsic activity of the MIL-101(Cr)-based catalysts is closely related to the Pd loading in MIL-101(Cr) and 2.0 wt.% Pd/MIL-101(Cr), in which Pd nanoparticles mainly within a range of 2-3 nm in diameter are confined in the mesoporous cages of MIL-101(Cr), shows the highest catalytic activity and selectivity with excellent reusability among the catalysts investigated, much superior to activated carbon supported Pd catalysts. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：33 / 41
页数：9
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