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Poly (Ionic Liquid)‐Metal Organic Framework‐Derived Nanoporous Carbon Membranes: Facile Fabrication and Ultrahigh Areal Capacitance.

Authors :
Shi, Yu
Long, Wenhua
Wang, Yue
He, Xuelong
Lv, Baokang
Zuo, Hongyu
Li, Xinghao
Liao, Yaozu
Zhang, Weiyi
Source :
Macromolecular Rapid Communications; Oct2023, Vol. 44 Issue 20, p1-9, 9p
Publication Year :
2023

Abstract

With the rapid development of energy storage technology, the operation of portable and wearable devices is inseparable from high energy density power supplies. However, the demand for high performance supercapacitors in movable smart electronics is still restrained by their insufficient areal capacitance and limited power/energy densities. In addition, some electroactive materials, including metal oxides, conductive polymers, graphene, porous carbons, etc., are inevitable to use extra adhesives for the preparation of electrode materials. In this work, integrated hierarchical graphitic porous carbon membranes used as the electrodes without adhesives are successfully synthesized, via pyrolyzing poly(ionic liquid)s (PILs)‐metal organic frameworks (MOFs) composite membranes. The asymmetric supercapacitor is assembled by the carbonized PIL‐MOF composite membrane and PILs‐derived porous carbon membrane, and exhibits significant areal capacitance with remarkable power and energy densities. In the two‐electrode system, the areal capacitance can reach 9.5 F cm−2 with an energy density of 1.91 mWh cm−2. In the fabricated all‐solid‐state supercapacitors, the areal capacitance and energy density achieved 3.2 F cm−2 and 0.65 mWh cm−2, respectively, exceeding most reported ones. Therefore, the integrated carbon membrane electrodes with high areal capacitance reveal great potential in miniaturized devices, and further show a wider application scope through regulating PILs. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10221336
Volume :
44
Issue :
20
Database :
Complementary Index
Journal :
Macromolecular Rapid Communications
Publication Type :
Academic Journal
Accession number :
173100157
Full Text :
https://doi.org/10.1002/marc.202300309