3D atomic imaging of low-coordinated active sites in solid-state dealloyed hierarchical nanoporous gold

doi:10.1039/d1ta05942d

IMR OpenIR

	3D atomic imaging of low-coordinated active sites in solid-state dealloyed hierarchical nanoporous gold
	Wang, Chunyang 1,3; Liu, Hongyang 1; Duan, Huichao 1,2; Li, Zhenwei 1,2; Zeng, Panlin 1,2; Zou, Peichao 3; Wang, Xuelu 1,2; Ye, Hengqiang 1; Xin, Huolin L.3; Du, Kui 1
通讯作者	Xin, Huolin L.(huolinx@uci.edu) ; Du, Kui(kuidu@imr.ac.cn)
	2021-10-22
发表期刊	JOURNAL OF MATERIALS CHEMISTRY A
ISSN	2050-7488
页码	9
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.
资助者	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
DOI	10.1039/d1ta05942d
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000716020800001
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/167138
专题	中国科学院金属研究所
通讯作者	Xin, Huolin L.; Du, Kui
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
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.