Direct In Situ TEM Visualization and Insight into the Facet-Dependent Sintering Behaviors of Gold on TiO2
文献类型：期刊论文
| 作者 | Yuan, WT; Zhang, DW; Ou, Y; Fang, K; Zhu, BE; Yang, HS; Hansen, TW; Wagner, JB; Zhang, Z; Gao, Y |
| 刊名 | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
 |
| 出版日期 | 2018 |
| 卷号 | 57期号:51页码:16827-16831 |
| 关键词 | TRANSMISSION ELECTRON-MICROSCOPY NANOPARTICLES SIZE PARTICLES CATALYSIS OXIDATION SURFACES HYDROGEN |
| ISSN号 | 1433-7851 |
| DOI | 10.1002/anie.201811933 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Preventing sintering of supported nanocatalysts is an important issue in nanocatalysis. A feasible way is to choose a suitable support. However, whether the metal-support interactions promote or prevent the sintering has not been fully identified. Now, completely different sintering behaviors of Au nanoparticles on distinct anatase TiO2 surfaces have been determined by insitu TEM. The full insitu sintering processes of Au nanoparticles were visualized on TiO2 (101) surface, which coupled the Ostwald ripening and particle migration coalescence. In contrast, no sintering of Au on TiO2 anatase (001) surface was observed under the same conditions. This facet-dependent sintering mechanism is fully explained by the density function theory calculations. This work not only offers direct evidence of the important role of supports in the sintering process, but also provides insightful information for the design of sintering-resistant nanocatalysts. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/30902]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Tech Univ Denmark, Ctr Electron Nanoscopy, DK-2800 Lyngby, Denmark 2.Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China 3.Chinese Acad Sci, Div Interfacial Water, Shanghai 201800, Peoples R China 4.Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, WT,Zhang, DW,Ou, Y,et al. Direct In Situ TEM Visualization and Insight into the Facet-Dependent Sintering Behaviors of Gold on TiO2[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2018,57(51):16827-16831. |
| APA | Yuan, WT.,Zhang, DW.,Ou, Y.,Fang, K.,Zhu, BE.,...&Wang, Y.(2018).Direct In Situ TEM Visualization and Insight into the Facet-Dependent Sintering Behaviors of Gold on TiO2.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,57(51),16827-16831. |
| MLA | Yuan, WT,et al."Direct In Situ TEM Visualization and Insight into the Facet-Dependent Sintering Behaviors of Gold on TiO2".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 57.51(2018):16827-16831. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。