Tuning the structures of two-dimensional cuprous oxide confined on Au(111)

doi:10.1007/s12274-018-2109-6

	Tuning the structures of two-dimensional cuprous oxide confined on Au(111)
	Liu, Qingfei 2,4; Han, Nannan 1,3; Zhang, Shengbai 1; Zhao, Jijun 3; Yang, Fan 2; Bao, Xinhe 2
刊名	NANO RESEARCH
	2018-11-01
卷号	11 期号:11 页码:5957-5967
关键词	cuprous oxide Au(111) scanning tunneling microscopy confine
ISSN号	1998-0124
DOI	10.1007/s12274-018-2109-6
通讯作者	Zhao, Jijun(zhaojj@dlut.edu.cn) ; Yang, Fan(fyang@dicp.ac.cn) ; Bao, Xinhe(xhbao@dicp.ac.cn)
英文摘要	Two-dimensional (2D) cuprous oxide (Cu2O) nanostructures (NSs) of monolayer thickness were synthesized on Au(111) and characterized using atomic-resolution scanning tunneling microscopy, X-ray photoelectron spectroscopy, and density functional theory (DFT) calculations. The surface and edge structures of 2D Cu2O were resolved at the atomic level and found to exhibit a graphene-like lattice structure. Cu2O NSs grew preferentially at the face centered cubic (fcc) domains of Au(111). Depending on the annealing temperature, the shapes and structures of Cu2O NSs were found to vary from elongated islands with a defective hexagonal lattice (mostly topological 5-7 defects) to triangular NSs with an almost-perfect hexagonal lattice. The edge structures of Cu2O NSs also varied with the annealing temperature, from predominantly the arm-chair 56 structure at 400 K to almost exclusively the zig-zag structure at 600 K. DFT calculations suggested that the herringbone ridges of Au(111) confined the growth and structure of Cu2O NSs on Au(111). As such, the arm-chair edges of Cu2O NSs, which are less stable than the zig-zag edges, could be exposed preferentially at 400 K. Cu2O NSs developed into the thermodynamically-favored triangular form and exposed zig-zag edges at 600 K, when the Au(111) substrate became mobile. The confined growth of 2D cuprous oxide on Au(111) demonstrated the importance of metal-oxide interactions in tuning the structures of supported 2D oxide NSs.
资助项目	Ministry of Science and Technology of China[2017YFB0602205] ; Ministry of Science and Technology of China[2016YFA0202803] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB17020200] ; National Natural Science Foundation of China[21473191] ; National Natural Science Foundation of China[91545204] ; National Natural Science Foundation of China[11574040] ; National Natural Science Foundation of China[11504040] ; Thousand Talents Program for Young Scientists ; Supercomputing Center of Dalian University of Technology
WOS关键词	SCANNING-TUNNELING-MICROSCOPY ; OXYGEN-CHEMISORPTION ; STEP EDGES ; SURFACE ; FILMS ; COPPER ; OXIDATION ; GRAPHENE ; DEFECTS ; CU
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	TSINGHUA UNIV PRESS
WOS记录号	WOS:000449842500017
资助机构	Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Thousand Talents Program for Young Scientists ; Thousand Talents Program for Young Scientists ; Supercomputing Center of Dalian University of Technology ; Supercomputing Center of Dalian University of Technology ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Thousand Talents Program for Young Scientists ; Thousand Talents Program for Young Scientists ; Supercomputing Center of Dalian University of Technology ; Supercomputing Center of Dalian University of Technology ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Thousand Talents Program for Young Scientists ; Thousand Talents Program for Young Scientists ; Supercomputing Center of Dalian University of Technology ; Supercomputing Center of Dalian University of Technology ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Thousand Talents Program for Young Scientists ; Thousand Talents Program for Young Scientists ; Supercomputing Center of Dalian University of Technology ; Supercomputing Center of Dalian University of Technology
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166728]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Zhao, Jijun; Yang, Fan; Bao, Xinhe
作者单位	1.Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA 2.Chinese Acad Sci, Dalian Inst Chem Phys, Collaborat Innovat Ctr Chem Energy Mat, State Key Lab Catalysis, Zhongshan Rd 457, Dalian 116023, Peoples R China 3.Dalian Univ Technol, Minist Educ, Key Lab Mat Modificat Laser Ion & Elect Beams, Dalian 116024, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Qingfei,Han, Nannan,Zhang, Shengbai,et al. Tuning the structures of two-dimensional cuprous oxide confined on Au(111)[J]. NANO RESEARCH,2018,11(11):5957-5967.
APA	Liu, Qingfei,Han, Nannan,Zhang, Shengbai,Zhao, Jijun,Yang, Fan,&Bao, Xinhe.(2018).Tuning the structures of two-dimensional cuprous oxide confined on Au(111).NANO RESEARCH,11(11),5957-5967.
MLA	Liu, Qingfei,et al."Tuning the structures of two-dimensional cuprous oxide confined on Au(111)".NANO RESEARCH 11.11(2018):5957-5967.