EXAFS Characterization of Pd Catalysts for Enantioselective Hydrogenation of α-Phenylcinnamic Acid: Pretreatment Effects and Thiol Adsorption

被引：4
|
作者：
Kubota, Takeshi [1 ]
Sato, Haruka [2 ]
Uchida, Takayuki [2 ]
Kim, Tae Yeon [2 ]
Omata, Koji [1 ]
Misaki, Tomonori [2 ]
Okamoto, Yasuaki [2 ]
Sugimura, Takashi [2 ]
机构：
[1] Shimane Univ, Interdisciplinary Grad Sch Sci & Engn, Matsue, Shimane 6908504, Japan
[2] Univ Hyogo, Grad Sch Mat Sci, 3-2-1 Kohto, Ako Gun, Hyogo 6781297, Japan
来源：
CATALYSIS LETTERS | 2016年 / 146卷 / 12期
关键词：
EXAFS; Pd catalysts; Enantioselective hydrogenation; alpha-Phenylcinnamic acid; Thiol adsorption; CINCHONIDINE-MODIFIED PD/C; HETEROGENEOUS ASYMMETRIC HYDROGENATION; (E)-ALPHA-PHENYLCINNAMIC ACID; ETHYLENE HYDROGENATION; LIGAND ACCELERATION; MODIFIED PALLADIUM; METAL-SURFACES; AMINE ADDITION; SULFUR; NANOPARTICLES;
D O I：
10.1007/s10562-016-1859-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effects of the pretreatment and Pd-distribution on the enantioselective hydrogenation of alpha-phenylcinnamic acid over cinchonidine-modified Pd/C and Pd/Al2O3 were studied by use of EXAFS techniques combined with thiol adsorption. It is suggested that the enhanced performance by the H-2-pretreatment at 353 K is ascribed to the elimination of contaminants and/or H2O from Pd/C. The Pd-S CN is related to the Pd dispersion and the reactivity and diffusivity of thiols used. [GRAPHICS] .
引用
收藏
页码：2430 / 2440
页数：11
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