A CoOx/CeO2 Catalyst for Low-Temperature CO Oxidation

Abstract

Abstract: A CoOx/CeO2 catalyst was prepared by the co-precipitation-oxidation method, and its catalytic performance for CO oxidation was investigated under humid and dry conditions ,respectively. The CoOx/CeO2 catalyst exhibited excellent activity and good resistance to water vapor poisoning. Remarkably, 99% CO conversion could be achieved at 196 K for more than 400 min under dry condition, and when the reaction was carried out at 298 K, the conversion of CO was maintained at 94% after 2400 min. Even when 3.1% of water was added, the conversion of CO was still kept at 79% after 2400 min on-stream at 383 K.

Key words: cobalt oxide, ceria, carbon monoxide, oxidation, low temperature

SHAO Jianjun1,2, ZHANG Ping1, TANG Xingfu2, ZHANG Baocai2, LIU Junlong2, XU Yide2, SHEN Wenjie2. A CoOx/CeO2 Catalyst for Low-Temperature CO Oxidation[J]. Chinese Journal of Catalysis, 2006, 27(11): 937-939.

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https://www.cjcatal.com/EN/Y2006/V27/I11/937

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A CoOx/CeO2 Catalyst for Low-Temperature CO Oxidation

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