Strip-like Co-based metal–organic framework as electrode material for supercapacitors

doi:10.1007/s10854-022-07980-w

	Strip-like Co-based metal–organic framework as electrode material for supercapacitors
	Kang, Xiao-Ya; Ma, Ying-Xia; Wang, Jia-Wei; Shi, Xiao-Feng; Chen, Xin-Quan; Tian, Hu; Ran, Fen
刊名	Journal of Materials Science: Materials in Electronics
	2022-04-01
卷号	33 期号:10 页码:8256-8269
关键词	Activated carbon Anodes Cathodes Electric discharges Electrochemical electrodes Functional materials Supercapacitor A-stable Co based Cobalt-based Electrochemical performance Electrode material Metalorganic frameworks (MOFs) Simple++ Solvothermal Stable structures Storage fields
ISSN号	0957-4522
DOI	10.1007/s10854-022-07980-w
英文摘要	The cobalt-based metal–organic framework (Co-MOF) as an electrode material with satisfied electrochemical performances has received much attention in energy storage field. Herein, a strip-like Co-MOF was fabricated by a simple one-step solvothermal strategy. In which, the strips are of distinct lengths and thicknesses, and haphazardly lap together to form a stable structure similar to a bird's nest that could provide more moderation space for the volume expansion of the Co-MOF as electrode material in charge and discharge process. The unique structure shows the characteristics of hierarchical pores, which could effectively improve the specific surface area of the Co-MOF material, thereby enhancing the storage of electrochemical energy. The strip-like Co-MOF is endowed with large specific surface area of 643.5 m2/g, high specific capacity of 135.1 C/g at a current density of 0.5 A/g, and good capacitance retention of 91.7% after 2000 cycles at 5 A/g. Moreover, the asymmetric supercapacitor device assembled by using the strip-like Co-MOF as cathode and commercial activated carbon (AC) as anode exhibits a specific capacitance of 58.3 F/g at the current density of 0.5 A/g in a voltage window of 1.55 V, and the maximum energy density is 19.5 Wh/kg at a power density of 389 W/kg. The novel strategy to construct unique microstructure MOF with good properties could be applied to prepare other MOF-based functional materials for various applications. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
WOS研究方向	Engineering ; Materials Science ; Physics
语种	英语
出版者	Springer
WOS记录号	WOS:000766437700006
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157978]
专题	材料科学与工程学院
作者单位	State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, School of Materials Science & Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Kang, Xiao-Ya,Ma, Ying-Xia,Wang, Jia-Wei,et al. Strip-like Co-based metal–organic framework as electrode material for supercapacitors[J]. Journal of Materials Science: Materials in Electronics,2022,33(10):8256-8269.
APA	Kang, Xiao-Ya.,Ma, Ying-Xia.,Wang, Jia-Wei.,Shi, Xiao-Feng.,Chen, Xin-Quan.,...&Ran, Fen.(2022).Strip-like Co-based metal–organic framework as electrode material for supercapacitors.Journal of Materials Science: Materials in Electronics,33(10),8256-8269.
MLA	Kang, Xiao-Ya,et al."Strip-like Co-based metal–organic framework as electrode material for supercapacitors".Journal of Materials Science: Materials in Electronics 33.10(2022):8256-8269.