Cationic ion-driven surface control of one-dimensional CeO2 nanocrystals to enhance catalytic performance of CO oxidation
文献类型：期刊论文
| 作者 | Rao, Richuan; Dong, Xiongzi; Dong, Huaze; Fang, Song; Li, Na ; Wei, Yanxin; Wang, Lin; Sun, Hai; Wang, Tong; Hu, Qianjin
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| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2020-03-25 |
| 卷号 | 818页码:1-7 |
| 关键词 | CeO2 Surface structure Ag/CeO2 CO oxidation |
| ISSN号 | 0925-8388 |
| 英文摘要 | Surface structures of one-dimensional CeO2 nanocrystals are tuned with different cationic ions in a facile and mild hydrothermal system with formate and carbonate. The synthetic key is to control the formation of anisotropic CeO2 precursors with the anion structure of formate and carbonate. The diluted concentration of Na+ ions with NH4+ ions can induce the formation of the CeO2 nanotube (NT) precursors, and yet Na+ ions can promote the production of the CeO2 nanorod (NR) precursors. CeO2 nanocrystals are applied in CO oxidation and show a very important effect of their surface structure on their catalytic performance. CeO2 NTs have rich cerium surface with the higher concentration of Ce3+ ions and can accelerate the mobility of more surface oxygen species than CeO2 NRs with difficultly reduced rich oxygen surface. However, after silver loading, CeO2 NRs can show the higher stability of CeO2 particles, more easily activated surface of CeO2 NRs with more Ce3+ ions, the promoted production of metallic Ag nanoparticles and higher mobility of more surface oxygen species on CeO2 surface. Therefore, CeO2 NTs have a higher catalytic activity of CO oxidation and conversely, after loading Ag, Ag/CeO2 NRs show the higher catalytic performance. (C) 2019 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44231]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Rao, Richuan,Dong, Xiongzi,Dong, Huaze,et al. Cationic ion-driven surface control of one-dimensional CeO2 nanocrystals to enhance catalytic performance of CO oxidation[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,818:1-7. |
| APA | Rao, Richuan.,Dong, Xiongzi.,Dong, Huaze.,Fang, Song.,Li, Na.,...&Hu, Chunming.(2020).Cationic ion-driven surface control of one-dimensional CeO2 nanocrystals to enhance catalytic performance of CO oxidation.JOURNAL OF ALLOYS AND COMPOUNDS,818,1-7. |
| MLA | Rao, Richuan,et al."Cationic ion-driven surface control of one-dimensional CeO2 nanocrystals to enhance catalytic performance of CO oxidation".JOURNAL OF ALLOYS AND COMPOUNDS 818(2020):1-7. |
入库方式： OAI收割
来源：生态环境研究中心
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