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Catalysts 2016, 6(3), 48;

Formic Acid Modified Co3O4-CeO2 Catalysts for CO Oxidation

Department of Chemical and Pharmaceutical Engineering, Chengdu University of Technology, Chengdu 610059, China
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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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

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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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