Cobalt-Based Layered Metal-Organic Framework as an Ultrahigh Capacity Supercapacitor Electrode Material

ACS Applied Materials & Interfaces
Xiuxiu LiuGuoxiu Wang

Abstract

Metal-organic frameworks (MOFs) have recently received increasing interest due to their potential application in the energy storage and conversion field. Herein, cobalt-based layered MOF ({[Co(Hmt)(tfbdc)(H2O)2]·(H2O)2}n, Co-LMOF; Hmt = hexamethylenetetramine; H2tfbdc = 2,3,5,6-tetrafluoroterephthalic acid) has been evaluated as an electrode material for supercapacitors. The Co-LMOF electrode exhibits a high specific capacitance and excellent cycling stability. Its maximum specific capacitance is 2474 F g(-1) at a current density of 1 A g(-1), and the specific capacitance retention is about 94.3% after 2000 cycles. The excellent electrochemical property may be ascribed to the intrinsic nature of Co-LMOF, enough space available for the storage and diffusion of the electrolyte, and the particles of nanoscale size.

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Citations

Oct 28, 2016·Chemistry : a European Journal·Jie YangMingdeng Wei
Oct 27, 2017·Chemistry : a European Journal·Seung Mi OhSeong-Ju Hwang
Oct 17, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Meng-Ke WuLei Han
May 24, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Yifan LinTakayoshi Sasaki
Nov 7, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Mikhail KhrizanforovYulia Budnikova
Dec 14, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Kuaibing WangQichun Zhang
Aug 12, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Richa RajakShaikh M Mobin
Aug 26, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Jun WangWei-Guang Zhang
Feb 7, 2021·Environmental Science and Pollution Research International·Jianxian QinYuanrui Fan
Jul 28, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Yuxuan GuoQichun Zhang

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