Enhanced Capacitance Performance by Coupling 2D Conductive Metal–Organic Frameworks and Conducting Polymers for Hybrid Supercapacitors

A core–shell structure composite material consisting of a conductive polymer and 2D conductive metal–organic frameworks (CMOFs) was assembled by hydrothermal methods. The use of polypyrrole (PPy) as a backbone effectively prevents the aggregation of CMOFs. Its own hollow structure provides better co...

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Published inACS applied energy materials Vol. 4; no. 9; pp. 9534 - 9541
Main Authors Chen, Kang, Zhao, Shihang, Sun, Jie, Zhou, Jiachao, Wang, Yingchao, Tao, Kai, Xiao, Xunwen, Han, Lei
Format Journal Article
LanguageEnglish
Published American Chemical Society 27.09.2021
Subjects
polypyrrole
conductive metal−organic frameworks
conducting polymers
hybrid supercapacitor
electrode materials
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Summary:A core–shell structure composite material consisting of a conductive polymer and 2D conductive metal–organic frameworks (CMOFs) was assembled by hydrothermal methods. The use of polypyrrole (PPy) as a backbone effectively prevents the aggregation of CMOFs. Its own hollow structure provides better conductivity while shortening the ion diffusion pathway. Benefiting from the rational structural design, the performance of 572.2 F g–1 is demonstrated by the core–shell PPy@NiCo-CAT electrode. In addition, we incorporated the material into the hybrid supercapacitor (HSC) and verified its excellent energy density and lifetime. Furthermore, 12 light-emitting diodes (LEDs) can be illuminated by two HSCs connected in series. The strategy of compounding conductive polymers with 2D CMOFs provides additional options for developing electrode materials for high-performance HSC devices.
ISSN:2574-0962
2574-0962
DOI:10.1021/acsaem.1c01694