Synthesis, Characterization and Shape-Dependent Catalytic CO Oxidation Performance of Ruthenium Oxide Nanomaterials: Influence of Polymer Surfactant

Applied Sciences

Antony Ananth²  Duncan H. Gregory¹  Young Sun Mok² 

[1] School of Chemistry, University of Glasgow, Glasgow G12 8QQ, UK; E-Mail:;Department of Chemical and Biological Engineering, Jeju National University, Jeju 690-756, Korea; E-Mail:

关键词: ruthenium oxide;    polyethylene glycol;    shape effect;    CO oxidation;   

DOI  :  10.3390/app5030344

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.