Influence of calcination and pretreatment conditions on the activity of Co3O4 for CO oxidation
文献类型：期刊论文
| 作者 | Yu, YB; Zhao, JJ ; Han, X; Zhang, Y; Qin, XB; Wang, BY; Qin XB(秦秀波); Wang BY(王宝义)
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| 刊名 | CHINESE JOURNAL OF CATALYSIS
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| 出版日期 | 2013 |
| 卷号 | 34期号:2页码:283-293 |
| 关键词 | Tricobalt tetraoxide Calcination Pretreatment Oxygen vacancy Carbon monoxide oxidation |
| 通讯作者 | [Yu Yunbo ; Zhao Jiaojiao ; Han Xue ; Zhang Yan] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China ; [Qin Xiubo ; Wang Baoyi] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 英文摘要 | The influence of calcination and pretreatment conditions on the structure of Co3O4 and its activity for CO oxidation were studied. TG analysis indicated that the precursor of Co3O4 prepared by a precipitation method was present in the form of cobalt hydroxide carbonate, calcination of which within the temperature range of 150-400 degrees C in air resulted in the formation of cubic phase Co3O4. N-2 adsorption-desorption, powder X-ray diffraction, transmission electron microscopy, and activity test results showed that the prepared Co3O4 samples were comprised of nanoparticles, with the specific surface area and size distribution closely related to the calcination temperature. Over these samples, a size dependence of the catalytic activity for CO oxidation was clearly observed. As identified by positron annihilation lifetime spectrum, low temperature oxygen temperature-programmed desorption, and durability testing for CO oxidation, pretreatment of Co3O4 in N-2 within the temperature range 150-250 degrees C favors the formation of surface oxygen vacancy clusters, the occurrence of which would be beneficial for the adsorption and activation of O-2, and also for the catalytic oxidation of CO. Meanwhile, the reconstruction of oxygen vacancies on the surface of Co3O4, induced by the pretreatment process, was also discussed. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved. |
| 学科主题 | Chemistry; Engineering |
| 类目[WOS] | Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Engineering |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000315558800001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/236869]  |
| 专题 | 高能物理研究所_多学科研究中心 中国科学院高能物理研究所_中国散裂中子源 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yu, YB,Zhao, JJ,Han, X,et al. Influence of calcination and pretreatment conditions on the activity of Co3O4 for CO oxidation[J]. CHINESE JOURNAL OF CATALYSIS,2013,34(2):283-293. |
| APA | Yu, YB.,Zhao, JJ.,Han, X.,Zhang, Y.,Qin, XB.,...&王宝义.(2013).Influence of calcination and pretreatment conditions on the activity of Co3O4 for CO oxidation.CHINESE JOURNAL OF CATALYSIS,34(2),283-293. |
| MLA | Yu, YB,et al."Influence of calcination and pretreatment conditions on the activity of Co3O4 for CO oxidation".CHINESE JOURNAL OF CATALYSIS 34.2(2013):283-293. |
入库方式： OAI收割
来源：高能物理研究所
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