Catalytic decomposition of N2O over Co-M (M=La, Ce, Fe, Mn, Cu, Cr) composite oxide catalysts
文献类型：期刊论文
| 作者 | Xue Li; He Hong |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 2007-05 |
| 卷号 | 23期号:5页码:664-670 |
| 关键词 | Co3O4 CeO2 spinel catalytic decomposition of N2O composite oxide catalyst |
| 英文摘要 | A series of Co-M (M=La, Ce, Fe, Mn, Cu, Cr) composite oxide catalysts were prepared by co-precipitation method and tested in catalytic decomposition of N2O. The results showed that Co-Ce composite oxide with Ce/Co molar ratio of 0.05 (CoCe0.05 catalyst) performed best in the N2O decomposition reaction. The presence of NO and O-2 in the feed affected the decomposition rate of N2O over CoCe0.05 by adsorption of nitrate or nitrite species on the active site. The XRD, BET, O-2-TPD, and H-2-TPR methods were used to characterize the Co-M mixed catalysts. The analysis results showed that the redox ability of the active site (Co2+) was very important for the decomposition of N2O over these catalysts. The surface decomposition of N2O was accompanied by the oxidation of Co2+ to Co3+, and the desorption of surface oxygen was accompanied by the reduction of Co3+ to Co2+. The addition of other transition metal oxides except CeO2 lowered the redox ability of Co3+/Co2+, and thus lowered the catalytic activities for the decomposition of N2O. In addition, the rate-determining step of the catalytic N2O decomposition was also influenced by the addition of various metal oxides. |
| WOS记录号 | WOS:000246680300009 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22423]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Xue Li,He Hong. Catalytic decomposition of N2O over Co-M (M=La, Ce, Fe, Mn, Cu, Cr) composite oxide catalysts[J]. ACTA PHYSICO-CHIMICA SINICA,2007,23(5):664-670. |
| APA | Xue Li,&He Hong.(2007).Catalytic decomposition of N2O over Co-M (M=La, Ce, Fe, Mn, Cu, Cr) composite oxide catalysts.ACTA PHYSICO-CHIMICA SINICA,23(5),664-670. |
| MLA | Xue Li,et al."Catalytic decomposition of N2O over Co-M (M=La, Ce, Fe, Mn, Cu, Cr) composite oxide catalysts".ACTA PHYSICO-CHIMICA SINICA 23.5(2007):664-670. |
入库方式： OAI收割
来源：生态环境研究中心
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