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

页码：2430 / 2440

页数：11

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