Convenient Design of Hollow Co3O4 Nanostructure on Carbon Cloth for Flexible Supercapacitors
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2020年第3期
论文作者：刘刚 LI Hongwei ZHOU Houhuang 刘启明
文章页码：469 - 472
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 1 164.8 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 5 000 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.
刘刚1,2，LI Hongwei1,2，ZHOU Houhuang1,2，刘启明1,2
1. Key Laboratory of Artificial Micro-and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University2. Suzhou Institute of Wuhan University
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 1 164.8 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 5 000 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.
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