Synergistic effects on thermal growth of CuO nanowires

doi:10.1016/j.jallcom.2019.152355

	Synergistic effects on thermal growth of CuO nanowires
	Shi, Juan 1; Qiao, Liang 1,3; Zhao, Yi 1; Sun, Zhonggui 1; Feng, Wangjun 2; Zhang, Zhiya 1,4; Wang, Jun 1,4; Men, Xuehu 1
	2020-01-30
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	815
摘要	Growing cupric oxide (CuO) nanowires (NWs) through thermal oxidation of copper (Cu) in air is a facile and low-cost strategy. In a temperature range of 673-1073 K, single-crystal, bi-crystal NWs and cone-shaped nanostructure usually coexist. As far as the underlying mechanism is concerned, the stress-driven grain-boundary (GB) diffusion mechanism has been the most successful theory up to now. However, it did not include the influence of oxygen partial pressure and cannot explain the growth of long single-crystal CuO NWs of uniform diameters. Thus, the CuO NWs growth mechanism is yet to be fully understood. In this study, we present that synergistic effects of the Kirkendall effect, stress-driven GB diffusion, large surface free energy gap between Cu2O and CuO facets and an effective electric field along the CuO NWs originating from oxygen gradient are mainly involved in the thermal growth of CuO NWs. (C) 2019 Elsevier B.V. All rights reserved.
关键词	Thermal oxidation of Cu in air CuO nanowires Kirkendall effect Surface free energy Surface polarization Oxygen gradient
DOI	10.1016/j.jallcom.2019.152355
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	National Natural Science Foundation of China[51675252][51731001] ; Fundamental Research Funds for the Central Universities[lzujbky-2016-114][lzujbky-2018-kb06] ; Science Foundation of Gansu Province[17JR5RA200] ; Open Project of Key Laboratory for Magnetism Materials of the Ministry of Education (Lanzhou University)[LZUMMM2019009]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000502521900054
出版者	ELSEVIER SCIENCE SA
EI入藏号	20194007489397
EI主题词	Copper oxides
EI分类号	482.2 Minerals - 641.1 Thermodynamics - 701.1 Electricity: Basic Concepts and Phenomena - 761 Nanotechnology - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 933 Solid State Physics - 933.1 Crystalline Solids
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/76622
专题	兰州理工大学
通讯作者	Zhang, Zhiya; Wang, Jun
作者单位	1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730000, Gansu, Peoples R China; 3.Lanzhou Univ, Inst Appl Magnetism, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Gansu, Peoples R China; 4.Lanzhou Univ, Key Lab Special Funct Mat & Struct Design, Minist Educ, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Shi, Juan,Qiao, Liang,Zhao, Yi,et al. Synergistic effects on thermal growth of CuO nanowires[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,815.
APA	Shi, Juan.,Qiao, Liang.,Zhao, Yi.,Sun, Zhonggui.,Feng, Wangjun.,...&Men, Xuehu.(2020).Synergistic effects on thermal growth of CuO nanowires.JOURNAL OF ALLOYS AND COMPOUNDS,815.
MLA	Shi, Juan,et al."Synergistic effects on thermal growth of CuO nanowires".JOURNAL OF ALLOYS AND COMPOUNDS 815(2020).