Preparation of recoverable Ru catalysts for liquid-phase oxidation and hydrogenation reactions

被引：73
作者：
Jacinto, Marcos J. [1 ]
Santos, Osvaldo H. C. F. [1 ]
Jardim, Renato F. [2 ]
Landers, Richard [3 ]
Rossi, Liane M. [1 ]
机构：
[1] Univ Sao Paulo, Inst Quim, BR-05508000 Sao Paulo, Brazil
[2] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
[3] Univ Estadual Campinas, Inst Fis, BR-13083970 Campinas, SP, Brazil
来源：
APPLIED CATALYSIS A-GENERAL | 2009年 / 360卷 / 02期
基金：
巴西圣保罗研究基金会;
关键词：
Magnetite nanoparticles; Magnetic recovery; Ruthenium; Hydrogenation; Oxidation; AQUEOUS BIPHASIC CATALYSIS; MAGNETIC NANOPARTICLES; REUSABLE CATALYST; FACILE CATALYST; HECK; SILICA; SUZUKI; PD; HYDROFORMYLATION; EFFICIENT;
D O I：
10.1016/j.apcata.2009.03.018
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：
We here report the synthesis, characterization and catalytic performance of new supported Ru(III) and Ru(0) catalysts. In contrast to most supported catalysts, these new developed catalysts for oxidation and hydrogenation reactions were prepared using nearly the same synthetic strategy, and are easily recovered by magnetic separation from liquid phase reactions. The catalysts were found to be active in both forms, Ru(III) and Ru(0), for selective oxidation of alcohols and hydrogenation of olefins, respectively. The catalysts operate under mild conditions to activate molecular oxygen or molecular hydrogen to perform clean conversion of selected substrates. Aryl and alkyl alcohols were converted to aldehydes under mild conditions, with negligible metal leaching. If the metal is properly reduced, Ru(0) nanoparticles immobilized on the magnetic support surface are obtained, and the catalyst becomes active for hydrogenation reactions. (c) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：177 / 182
页数：6
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