Synthesis, characterization and shape-dependent catalytic co oxidation performance of ruthenium oxide nanomaterials: influence of polymer surfactant

Ananth, A., Gregory, D. and Mok, Y. (2015) Synthesis, characterization and shape-dependent catalytic co oxidation performance of ruthenium oxide nanomaterials: influence of polymer surfactant. Applied Sciences, 5(3), pp. 344-358. (doi: 10.3390/app5030344)

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Abstract

Ruthenium oxide nano-catalysts supported on mesoporous γ-Al2O3 have been prepared by co-precipitation method and tested for CO oxidation. The effect of polyethylene glycol (PEG) on the properties of the catalyst was studied. Addition of the PEG surfactant acted as a stabilizer and induced a change in the morphology of ruthenium oxide from spherical nanoparticles to one-dimensional nanorods. Total CO conversion was measured as a function of morphology at 175 °C and 200 °C with 1.0 wt.% loading for PEG-stabilized and un-stabilized catalysts, respectively. Conversion routinely increased with temperature but in each case, the PEG-stabilized catalyst exhibited a notably higher catalytic activity as compared to the un-stabilized equivalent. It can be assumed that the increase in the activity is due to the changes in porosity, shape and dispersion of the catalyst engendered by the use of PEG.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Gregory, Professor Duncan
Authors: Ananth, A., Gregory, D., and Mok, Y.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Applied Sciences
Publisher:MDPI
ISSN:2076-3417
ISSN (Online):2076-3417
Copyright Holders:Copyright © 2015 The Authors
First Published:First published in Applied Sciences 5(3):344-358
Publisher Policy:Reproduced under a Creative Commons License

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