Synergistic effect of gold supported on redox active cerium oxide nanoparticles for the catalytic hydrogenation of 4-nitrophenol

M, Anand and G, Vinothkumar and Babu, Suresh (2017) Synergistic effect of gold supported on redox active cerium oxide nanoparticles for the catalytic hydrogenation of 4-nitrophenol. New Journal of Chemistry, 41 (14). pp. 6720-6729. ISSN 1144-0546

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Abstract

Conversion of 4-nitrophenol to 4-aminophenol by metal supported oxide catalyst have attracted much attention recently because of its potential application. The main objective of the paper is to demonstrate the crucial role of support material in a heterogeneous catalysts with inherent redox cycling feature. The metals supported on such redox active materials can significantly alter the catalytic performance in a synergistic manner. For this, the catalytic hydrogenation of Au-Ceria prepared by altering annealing-impregnation procedures was investigated in terms of size of gold, support material and its redox chemistry. The study clearly shows the variation in the catalytic activity of gold supported on the as-prepared and annealed ceria surface. This variation is due to the mutual interaction in the interface between absorbed Au and cerium oxide is certainly different in the as-prepared and annealed ceria surfaces with respect to surface chemistry and size. The redox nature of ceria and partial oxidation of gold on the surface of CeO2 have been involved in the catalytic reduction.

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IITH Creators:
IITH CreatorsORCiD
M, AnandUNSPECIFIED
Item Type: Article
Subjects: Chemistry > Organic chemistry
Chemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: Team Library
Date Deposited: 07 Jun 2017 03:58
Last Modified: 24 Jul 2017 10:34
URI: http://raiith.iith.ac.in/id/eprint/3200
Publisher URL: https://doi.org/10.1039/C7NJ01300K
OA policy: http://www.sherpa.ac.uk/romeo/issn/1144-0546/
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