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Effect of Cu Loading to Catalytic Selective CO Oxidation of CuO/CeO<sub>2</sub> –Co<sub>3</sub>O<sub>4</sub>
Department of Chemical Engineering, Faculty of Engineering, Burapha University, Chonburi, Thailand
Department of Chemical Engineering, Faculty of Engineering, Burapha University, Chonburi, Thailand
- 1 Department of Chemical Engineering, Faculty of Engineering, Burapha University, Chonburi, Thailand
- 2 Department of Chemical Engineering, Faculty of Engineering, Burapha University, Chonburi, Thailand
Advances in Chemical Engineering and Science·Volume 03 (2013)·Pages 15–19·Published 25 October 2013·DOI10.4236/aces.2013.34B003
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Abstract
This work studied CuO/CeO 2 -Co 3 O 4 with wt% Ce:Co ratio 95:5 for selective CO oxidation with effect of wt% Cu loading. The catalysts were prepared by co-precipitation. Characterizations of catalysts were carried out by XRD and BET techniques. The results showed a good dispersion of CuO for 5 wt% Cu loading catalysts and showed high specific surface area of catalyst. For selective CO oxidation, both 5CuO and 30CuO catalysts could remove completely CO in the presence of excess hydrogen at 423 K and 20CuO could eliminate CO completely at 443 K. Moreover, considering the selectivity to CO oxidation, the 5CuO catalyst has shown the highest selectivity of 85% while the 30CuO catalyst obtains the selectivity of 65% at the reaction temperature of 423 K.
KeywordsSelective CO OxidationCuO/CeO<sub>2</sub>–Co<sub>3</sub>O<sub>4</sub>Cu LoadingCe:Co RatioCo-precipitation
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