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题名: Effect of preparation method and calcination temperature on low-temperature CO oxidation over Co3O4/CeO2 catalyst
作者: Shao Jianjun;  Zhang Ping;  Tang Xingfu;  Zhang Baocai;  Song Wei;  Xu Yide;  Shen Wenjie
关键词: cobalt oxide ;  ceria ;  carbon monoxide
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2007-02-01
卷: 28, 期:2, 页:163-169
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Co3O4/CeO2 mixed oxides were prepared by coprecipitation-oxidation, homogeneous precipitation, and complexation-combustion methods. The catalysts were used to catalyze low-temperature CO oxidation under dry and humid conditions. The Co3O4/CeO2 catalyst prepared by the coprecipitation-oxidation method followed by calcination at 538 K exhibited excellent activity and good resistance to water vapor poisoning. Remarkably, a CO conversion of 99% was achieved at a temperature as low as 196 K and was maintained more than 400 min under the dry condition. When the reaction was carried out at 298 K, a CO conversion of 94% was obtained after running the reaction for 2 400 min. Even when 3.1% steam was added, a CO conversion of 79% could be kept after 2 400 min time-on-stream at 383 K. It is suggested that the strong interaction between Co3O4 and CeO2 is closely related to the preparation route and the calcination temperature and plays a crucial role in the CO oxidation over the Co3O4/CeO2 catalyst.
关键词[WOS]: CARBON-MONOXIDE OXIDATION ;  COBALTIC OXIDE ;  SURFACE ;  REACTIVITY ;  METAL
语种: 英语
WOS记录号: WOS:000244994000015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140417
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Acad Armored Force Engn, Natl Key Lab Remfg, Beijing 100072, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Shao Jianjun,Zhang Ping,Tang Xingfu,et al. Effect of preparation method and calcination temperature on low-temperature CO oxidation over Co3O4/CeO2 catalyst[J]. CHINESE JOURNAL OF CATALYSIS,2007,28(2):163-169.
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