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Catalysts 2016, 6(3), 48; doi:10.3390/catal6030048

Formic Acid Modified Co3O4-CeO2 Catalysts for CO Oxidation

1
Department of Chemical and Pharmaceutical Engineering, Chengdu University of Technology, Chengdu 610059, China
2
Richard G. Lugar Center for Renewable Energy, Indiana University-Purdue University, Indianapolis, IN 46224, USA
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Keith Hohn
Received: 13 January 2016 / Revised: 8 March 2016 / Accepted: 10 March 2016 / Published: 17 March 2016
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Abstract

A formic acid modified catalyst, Co3O4-CeO2, was prepared via facile urea-hydrothermal method and applied in CO oxidation. The Co3O4-CeO2-0.5 catalyst, treated by formic acid at 0.5 mol/L, performed better in CO oxidation with T50 obtained at 69.5 °C and T100 obtained at 150 °C, respectively. The characterization results indicate that after treating with formic acid, there is a more porous structure within the Co3O4-CeO2 catalyst; meanwhile, despite of the slightly decreased content of Co, there are more adsorption sites exposed by acid treatment, as suggested by CO-TPD and H2-TPD, which explains the improvement of catalytic performance. View Full-Text
Keywords: Co3O4-CeO2 catalyst; urea-hydrothermal synthesis; CO oxidation; formic acid treatment Co3O4-CeO2 catalyst; urea-hydrothermal synthesis; CO oxidation; formic acid treatment
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Shang, R.; Duan, Y.; Zhong, X.; Xie, W.; Luo, Y.; Huang, L. Formic Acid Modified Co3O4-CeO2 Catalysts for CO Oxidation. Catalysts 2016, 6, 48.

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