Palladium-nanoparticle intercalated vermiculite for selective hydrogenation of α,β-unsaturated aldehydes

被引：14

作者：

Divakar, Duraiswami ^{[1
]}

Manikandan, Dhanagopal ^{[1
]}

Rupa, Valentine ^{[1
]}

Preethi, Esther Leena ^{[1
]}

Chandrasekar, Revathi ^{[1
]}

Sivakumar, Thiripuranthagan ^{[1
]}

机构：

[1] Anna Univ, Dept Chem Engn, Madras 600025, Tamil Nadu, India

来源：

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 2007年 / 82卷 / 03期

关键词：

palladium; adsorption excess isotherm; intercalation; aldehydes; selective hydrogenation;

D O I：

10.1002/jctb.1661

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Palladium nanoparticles were generated in the interlamellar region of swelling 2:1 type vermiculite clay using an adsorption excess isotherm. An adsorption excess isotherm was constructed for vermiculite after exchanging the exchangeable Na+ ions in the interlamellar region using a binary liquid mixture (ethanol:toluene). Based on adsorption excess isotherm, 1% w/w palladium was intercalated into the interlamellar space of vermiculite. The Pd-intercalated vermiculite was characterized by X-ray diffraction, transmission electron microscopy and atomic absorption spectroscopy. The 1% w/w Pd-intercalated vermiculite was tested for its catalytic activity towards selective hydrogenation reactions involving some alpha,beta-unsaturated carbonyl compounds using a pulse reactor and its catalytic activity was compared with commercial 1% Pd/C. The intercalated catalyst was found to be very selective towards the desired product of unsaturated alcohols. (c) 2007 Society of Chemical Industry

引用

页码：253 / 258

页数：6