Fabrication and Electrochemical Properties of Novel Spherical Ni / Co-MOFs as Electrode Materials

doi:10.11896/cldb.21050021

	Fabrication and Electrochemical Properties of Novel Spherical Ni / Co-MOFs as Electrode Materials
	Niu, Xiaoqin 2; Kang, Xiaoya 1; Ma, Yingxia 1; Wang, Jiawei 1; Chen, Xinquan 1; Tian, Hu 1; Chen, Yuhong 2; Ran, Fen 1
刊名	Cailiao Daobao/Materials Reports
	2022-07-25
卷号	36 期号:14
关键词	Activated carbon Capacitance Chlorine compounds Cobalt compounds Current density Cyclic voltammetry Electrochemical electrodes Energy storage Metal ions Metal-Organic Frameworks Metals Nickel compounds Organic polymers Potassium hydroxide Active material Asymmetric supercapacitor Electrochemical performance Electrode material Metal organic framework materials Metalorganic frameworks (MOFs) Ni/co-metal-organic framework One pot Organic ligands Solvothermal reactions
ISSN号	1005-023X
DOI	10.11896/cldb.21050021
英文摘要	Metal-organic frameworks (MOFs) materials have aroused tremendous attention and been used as electrochemically active materials. In this work, a new electrode material of nickel/ cobalt metal-organic frameworks (Ni/ Co-MOFs) was fabricated by a facile one-pot solvothermal reaction using 1, 3, 5-benzenetricarboxylic acid (H3BTC) as the organic ligand, and nickel chloride hexahydrate (NiCl2 ·6H2O) and cobalt nitrate hexahydrate (Co(NO3)2·6H2O) as the central of metal ions. The microscopic morphology and structural composition of the Ni/ Co-MOFs sample were characterized by SEM, XRD, XPS and BET, and the electrochemical performances were tested by cyclic voltammetry, galvanosta-tic charging-discharging and electrochemical impedance spectra methods. The results indicate that the novel spherical Ni/ Co-MOFs is successful-ly fabricated. The prepared Ni/ Co-MOFs exhibits the specific capacitance of 779 F/ g at the current density of 0. 5 A/ g in 6 mol/L KOH electro-lyte, and the capacitance retention remains 79% after the current density increases to 5 A/ g. Furthermore, the asymmetric supercapacitor of Ni/ Co-MOFsAC assembled using Ni/ Co-MOFs as the positive electrode and activated carbon as the negative electrode possesses the specific ca-pacitance of 107 F/ g at the current density of 0. 5 A/ g. The asymmetric supercapacitors device delivers a satisfied energy storage capacity with the energy density of 38 Wh/ kg at the power density of 400 W/ kg, and the desired cycling stability of 65. 71% after 10 000 cycles sequential char-ging-discharging. As such, it is believed that the prepared Ni/ Co-MOFs have potential applications as electrode materials in the energy storage devices. © 2022 Cailiao Daobaoshe/ Materials Review. All rights reserved.
语种	中文
出版者	Cailiao Daobaoshe/ Materials Review
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159741]
专题	材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, School of Materials Science & Engineering, Lanzhou University of Technology, Lanzhou; 730050, China 2.School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Niu, Xiaoqin,Kang, Xiaoya,Ma, Yingxia,et al. Fabrication and Electrochemical Properties of Novel Spherical Ni / Co-MOFs as Electrode Materials[J]. Cailiao Daobao/Materials Reports,2022,36(14).
APA	Niu, Xiaoqin.,Kang, Xiaoya.,Ma, Yingxia.,Wang, Jiawei.,Chen, Xinquan.,...&Ran, Fen.(2022).Fabrication and Electrochemical Properties of Novel Spherical Ni / Co-MOFs as Electrode Materials.Cailiao Daobao/Materials Reports,36(14).
MLA	Niu, Xiaoqin,et al."Fabrication and Electrochemical Properties of Novel Spherical Ni / Co-MOFs as Electrode Materials".Cailiao Daobao/Materials Reports 36.14(2022).