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Efficient Metal‐Oriented Electrodeposition of a Co‐Based Metal‐Organic Framework with Superior Capacitive Performance
Author(s) -
Han Yan,
Cui Jian,
Yu Yue,
Chao Yunfeng,
Li Dejun,
Wang Caiyun,
Wallace Gordon G.
Publication year - 2022
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.202200644
Subject(s) - supercapacitor , materials science , capacitance , nucleation , metal organic framework , chemical engineering , capacitive sensing , power density , energy storage , electrode , nanotechnology , substrate (aquarium) , coating , chemistry , power (physics) , organic chemistry , physics , oceanography , adsorption , quantum mechanics , computer science , engineering , geology , operating system
An efficient cathodic electrodeposition method is developed for coating Co‐based metal‐organic frameworks (Co‐MOF) on carbon fiber cloth (CFC), a widely used substrate in energy fields. The use of a highly active Co metal surface enables nucleation and growth of Co‐MOF in 3D rodlike crystal bundles. When used as a binder‐free electrode (Co‐MOF/CFC) for supercapacitors, it shows a high areal capacitance of 1784 mF cm −2 at 1 mA cm −2 , good cycling stability and excellent rate capability. The assembled asymmetric all‐solid‐state supercapacitor device (Co‐MOF/CFC//AC) delivers a high energy density and power density. This work may open up an effective approach to realize the electrosynthesis of MOF films, promoting use in energy storage and conversion fields.