摘要
We proposed a new approach to construct zeolitic imidazolate frameworks-67 (ZIF-67) powders directly on carbon cloth without any conductive agent and adhesion agent and the ZIF-67 nanoparticles on carbon cloth were successfully converted into hollow Co3O4 nanostructure via a facile calcination process. Compared with original ZIF-67 powders, the Co3O4@CC electrode materials had admirable specific capacitance of 1164.8 F·g^-1 at an area current density of 2.5 mA·cm^-2. Furthermore, the rate performance remained 42.4% of initial value when the current density was increased to 30 mA·cm^-2 and the specific capacitance maintained 93.4% of initial capacity after 5000 cycles at an area current density of 10 mA·cm^-2. This strategy may have potential prospect for the application of MOFs in the energy storage and conversion field.
作者
LIU Gang
LI Hongwei
ZHOU Houhuang
LIU Qiming
刘刚;LI Hongwei;ZHOU Houhuang;刘启明(Key Laboratory of Artificial Micro-and Nano-structures of Ministry of Education,School of Physics and Technology,Wuhan University,Wuhan 430072,China;Suzhou Institute of Wuhan University,Suzhou 215123,China)
基金
Funded by the National Natural Science Foundation of China(No.51572202)
the National Science Foundation of Jiangsu Province(No.BK20171234)
the Foundation of Science and Technology on Plasma Physics Laboratory(No.6142A0403050617)。
