中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 金属研究所
  3. 中国科学院金属研究所
3D atomic imaging of low-coordinated active sites in solid-state dealloyed hierarchical nanoporous gold

文献类型：期刊论文

作者Wang, Chunyang1,3; Liu, Hongyang3; Duan, Huichao2,3; Li, Zhenwei2,3; Zeng, Panlin2,3; Zou, Peichao1; Wang, Xuelu2,3; Ye, Hengqiang3; Xin, Huolin L.1; Du, Kui3
刊名JOURNAL OF MATERIALS CHEMISTRY A
出版日期2021-10-22
页码9
ISSN号2050-7488
DOI10.1039/d1ta05942d
通讯作者Xin, Huolin L.(huolinx@uci.edu) ; Du, Kui(kuidu@imr.ac.cn)
英文摘要Boosting the activity of catalysts by constructing abundant low-coordinated sites is of considerable interest for maximizing the efficiency of catalysts. Equally importantly, three-dimensional imaging of these low-coordinated sites is crucial to the fundamental understanding of the relationship between the coordination environment and catalytic performance. Herein, we fabricate a novel class of hierarchical nanoporous gold which is rich in low-coordinated sites through solid-state plasma dealloying. For the first time, by using atomic-resolution electron tomography, we map out the coordination environment of the hierarchical nanoporous gold in three dimensions at the single-atom level. Quantitative coordination analysis reveals that owing to the introduction of substantial low-coordinated active sites with coordination numbers from 5 to 7, the catalytic performance of the hierarchical nanoporous gold in CO oxidation is improved. Our work provides in-depth insights into the relationship between the catalyst's coordination environment and catalytic performance, and the proof-of-concept demonstrated in this study is expected to be generally applicable to the design and study of a broad range of catalysts.
资助项目National Natural Science Foundation of China[91960202] ; National Key Research and Development Program of China[2017YFA0700701] ; Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science[2019JH3/30100020] ; Chinese Academy of Sciences[QYZDJ-SSW-JSC024]
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
语种英语
WOS记录号WOS:000716020800001
出版者ROYAL SOC CHEMISTRY
资助机构National Natural Science Foundation of China ; National Key Research and Development Program of China ; Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science ; Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/167137]  
专题金属研究所_中国科学院金属研究所
通讯作者Xin, Huolin L.; Du, Kui
作者单位1.Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Chunyang,Liu, Hongyang,Duan, Huichao,et al. 3D atomic imaging of low-coordinated active sites in solid-state dealloyed hierarchical nanoporous gold[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021:9.
APA Wang, Chunyang.,Liu, Hongyang.,Duan, Huichao.,Li, Zhenwei.,Zeng, Panlin.,...&Du, Kui.(2021).3D atomic imaging of low-coordinated active sites in solid-state dealloyed hierarchical nanoporous gold.JOURNAL OF MATERIALS CHEMISTRY A,9.
MLA Wang, Chunyang,et al."3D atomic imaging of low-coordinated active sites in solid-state dealloyed hierarchical nanoporous gold".JOURNAL OF MATERIALS CHEMISTRY A (2021):9.

入库方式： OAI收割

来源：金属研究所

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。