Catalytic studies of palladium nanoparticles immobilized on alumina synthesized by a simple physical precipitation method

Arora, Shailja and Kapoor, Pratibha and Singla, M.L. (2010) Catalytic studies of palladium nanoparticles immobilized on alumina synthesized by a simple physical precipitation method. Reaction Kinetics, Mechanisms and Catalysis, 99 (1). pp. 157-165. ISSN 1588-2837

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Abstract

In this study, a high catalytic activity of palladium nanoparticles immobilized on alumina (Al2O3) is reported for the industrially important reduction of aromatic nitro compounds to amino compounds. The palladium nanoparticles were immobilized on alumina by a simple physical precipitation method. The synthesis of palladium nanoparticles was done in ethylene glycol without using any external stabilizing agent. The composite particles exhibited good colloidal stability. The catalytic activity is investigated qualitatively by high performance liquid chromatography (HPLC) and quantitatively by photometrically monitoring the reduction of p-nitrophenol by an excess of sodium borohydride (NaBH4) in the presence of nanocomposites. The kinetic data could be explained by the assumption of pseudo first-order reaction with respect to p-nitrophenol

Item Type: Article
Uncontrolled Keywords: Palladium/alumina nanocomposite - p-Nitrophenol reduction - Pseudo first order reaction
Subjects: CSIO > Nano Science and Nano Technology
Divisions: Agri - Instrumentation
Depositing User: Ms T Kaur
Date Deposited: 23 Jan 2012 16:50
Last Modified: 16 Apr 2012 10:14
URI: http://csioir.csio.res.in/id/eprint/191

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