Synthesis of flower-like Co3O4-CeO2 composite oxide and its application to catalytic degradation of 1,2,4-trichlorobenzene
文献类型：期刊论文
| 作者 | Lin, Shijing ; Su, Guijin ; Zheng, Minghui ; Ji, Dekun ; Jia, Manke ; Liu, Yexuan |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2012 |
| 卷号 | 123页码:440－447 |
| 关键词 | Micro/nano composite material 1 2 4-Trichlorobenzene Catalytic degradation Synergistic effect Apparent activation energy |
| ISSN号 | 0926-3373 |
| 中文摘要 | A micrometer-sized, nanostructured. flower-like Co3O4-CeO2 composite oxide was synthesized by an ethylene-glycol-mediated process. The composite oxide was an assembly of polycrystalline nanopartides, with a typical mesoporous structure. The composite's catalytic activity in 1,2,4-trichlorobenzene degradation was evaluated usinga pulsed-flow microreactor-gas chromatography system, and compared with that of quartz sand, commercial CeO2, commercial Co3O4, and a Co3O4/CeO2 equimass mixture. The composite oxide was a promising catalyst for 1,2,4-trichlorobenzene degradation. This is attributed to the structural features of the composite oxide with a high specific surface area and a high total pore volume, and the synergistic effect between the two composite phases. The easy creation of high-mobility active oxygen on CeO2 and the easy cleavage of Co-O bonds at the interface of the two components promote reactivity of Co3O4 in 1,2,4-trichlorobenzene degradation. Pulsed catalytic theory suggests a first-order reaction between the composite oxide and 1,2,4-trichlorobenzene, with an apparent activation energy of about 27 kJ/mol, and degradation on the Co3O4-CeO2 composite oxide would occur easily. (C) 2012 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000307159100049 |
| 公开日期 | 2014-11-04 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7742]  |
| 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 | Lin, Shijing,Su, Guijin,Zheng, Minghui,et al. Synthesis of flower-like Co3O4-CeO2 composite oxide and its application to catalytic degradation of 1,2,4-trichlorobenzene[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2012,123:440－447. |
| APA | Lin, Shijing,Su, Guijin,Zheng, Minghui,Ji, Dekun,Jia, Manke,&Liu, Yexuan.(2012).Synthesis of flower-like Co3O4-CeO2 composite oxide and its application to catalytic degradation of 1,2,4-trichlorobenzene.APPLIED CATALYSIS B-ENVIRONMENTAL,123,440－447. |
| MLA | Lin, Shijing,et al."Synthesis of flower-like Co3O4-CeO2 composite oxide and its application to catalytic degradation of 1,2,4-trichlorobenzene".APPLIED CATALYSIS B-ENVIRONMENTAL 123(2012):440－447. |
入库方式： OAI收割
来源：生态环境研究中心
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