Mesoporous Co(3)O(4)-CeO(2) and Pd/Co(3)O(4)-CeO(2) catalysts: Synthesis, characterization and mechanistic study of their catalytic properties for low-temperature CO oxidation
文献类型：期刊论文
| 作者 | Luo, JY; Meng, M; Li, X; Li, XG; Zha, YQ; Hu, TD; Xie, YN; Zhang, J;胡天斗; Xie YN(谢亚宁) ; Zhang J(张静)
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| 刊名 | JOURNAL OF CATALYSIS
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| 出版日期 | 2008 |
| 卷号 | 254期号:2页码:310-324 |
| 关键词 | cobalt oxide ceria palladium mesoporous catalyst CO oxidation structural characterization synergy mechanism |
| 英文摘要 | Several nanosized catalysts Co(3)O(4)-CeO(2) with varying compositions were synthesized by a surfactant-template method and further promoted by a small amount of I'd (0.5 wt%). These catalysts exhibit uniform mesoporous structure and high surface area (> 100 m(2) g(-1)). The Co(3)O(4) crystallites in these catalysts are encapsulated by nanosized CeO(2) with only a small fraction of Co ions exposing on the surface and strongly interacting with CeO(2). Such structure maximizes the interaction between Co(3)O(4) and CeO(2) in three dimensions, resulting in unique redox properties. The introduction of Pd prominently enhances both the reduction and oxidation performance of the catalysts, due to hydrogen or oxygen spillover. These catalysts prepared by surfactant-template method exhibit excellent oxidation performance, especially the ones promoted with Pd, which show markedly enhanced CO oxidation activity even at room temperature. Based upon the results of structural properties, redox behaviors and in situ DRIFTS study, two different reaction pathways over Co(3)O(4)-CeO(2) and Pd/Co(3)O(4)-CeO(2) are proposed. (C) 2008 Elsevier Inc. All rights reserved. |
| 学科主题 | Chemistry; Engineering |
| 收录类别 | SCI |
| WOS记录号 | WOS:000255533700017 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/223935]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Luo, JY,Meng, M,Li, X,et al. Mesoporous Co(3)O(4)-CeO(2) and Pd/Co(3)O(4)-CeO(2) catalysts: Synthesis, characterization and mechanistic study of their catalytic properties for low-temperature CO oxidation[J]. JOURNAL OF CATALYSIS,2008,254(2):310-324. |
| APA | Luo, JY.,Meng, M.,Li, X.,Li, XG.,Zha, YQ.,...&张静.(2008).Mesoporous Co(3)O(4)-CeO(2) and Pd/Co(3)O(4)-CeO(2) catalysts: Synthesis, characterization and mechanistic study of their catalytic properties for low-temperature CO oxidation.JOURNAL OF CATALYSIS,254(2),310-324. |
| MLA | Luo, JY,et al."Mesoporous Co(3)O(4)-CeO(2) and Pd/Co(3)O(4)-CeO(2) catalysts: Synthesis, characterization and mechanistic study of their catalytic properties for low-temperature CO oxidation".JOURNAL OF CATALYSIS 254.2(2008):310-324. |
入库方式： OAI收割
来源：高能物理研究所
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