| Morphological effects of gold clusters on the reactivity of ceria surface oxygen | |
| Wang, Jin; Tan, Hongyi; Yu, Shuzhen; Zhou, Kebin | |
| 刊名 | Acs catalysis
 |
| 2015-05-01 | |
| 卷号 | 5期号:5页码:2873-2881 |
| 关键词 | Gold Morphological effect Ceria Nanocatalysis Surface oxygen |
| ISSN号 | 2155-5435 |
| DOI | 10.1021/cs502055r |
| 通讯作者 | Zhou, kebin(kbzhou@ucas.ac.cn) |
| 英文摘要 | Well-defined {100}-faceted ceria nanocube-supported gold nanoclusters with various morphologies, including individual atom, monolayer, multilayer and nanoparticle, have been synthesized and systematically investigated combined with density functional theory calculations. a strong morphological effect of gold clusters on the reactivity of ceria surface oxygen has been identified. the reducibility and co oxidation activities of au/ceo2 catalysts increased significantly as the morphology of the gold clusters changed from single atoms to monolayer, then to multilayer, then nanoparticles. it was revealed that up to a bilayer of gold clusters were needed for desirable catalytic performance in the au/ceo2 system. the transfer of electrons from gold clusters to the surface ce-o groups of ceria and strong au au interactions play significant roles in determining the reducibility of surface oxygen of ceo2. |
| WOS关键词 | GAS SHIFT REACTION ; RAY-ABSORPTION SPECTROSCOPY ; LOW-TEMPERATURE OXIDATION ; OXIDE-SUPPORTED GOLD ; CO OXIDATION ; CARBON-MONOXIDE ; ACTIVE GOLD ; NANOCRYSTALLINE CEO2 ; AU/CEO2 CATALYSTS ; HAADF-STEM |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000354012200024 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2376556 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhou, Kebin |
| 作者单位 | Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jin,Tan, Hongyi,Yu, Shuzhen,et al. Morphological effects of gold clusters on the reactivity of ceria surface oxygen[J]. Acs catalysis,2015,5(5):2873-2881. |
| APA | Wang, Jin,Tan, Hongyi,Yu, Shuzhen,&Zhou, Kebin.(2015).Morphological effects of gold clusters on the reactivity of ceria surface oxygen.Acs catalysis,5(5),2873-2881. |
| MLA | Wang, Jin,et al."Morphological effects of gold clusters on the reactivity of ceria surface oxygen".Acs catalysis 5.5(2015):2873-2881. |
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