Aqueous-phase biphasic dehydroaromatization of bio-derived limonene into p-cymene by soluble Pd nanocluster catalysts

被引：53

作者：

Zhao, Chen ^{[1
]}

Gan, Weijia ^{[1
]}

Fan, Xiaobing ^{[1
]}

Cai, Zhipeng ^{[1
]}

Dyson, Paul J. ^{[1
]}

Kou, Yuan ^{[1
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, PKU Green Chem Ctr, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China

来源：

JOURNAL OF CATALYSIS | 2008年 / 254卷 / 02期

基金：

中国国家自然科学基金;

关键词：

limonene; p-cymene; dehydroaromatization; palladium; nanoparticles; biphasic catalysis; terpene; poly(N-vinyl-2-pyrrolidone); biomass;

D O I：

10.1016/j.jcat.2008.01.003

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：

A biphasic approach to the dehydroaromatization of bioderived limonene into water-insoluble p-cymene using soluble Pd nanoparticle catalysts in an aqueous phase (>= 150 degrees C, 2 bar H-2) was successfully achieved with a conversion of 93% and a selectivity of 82%. The Pd nanoparticles, operating under forcing conditions (180 degrees C, 2 bar H-2), can be recycled at least four times without noticeable degradation. The effects of temperature, pressure, reaction time, pH, catalyst concentration, metal type, the type and amount of polymer stabilizer, and the preparation method were systematically investigated to optimize the process and provide insight into the mechanisms involved. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：244 / 250

页数：7

共 31 条

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