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General Interfacial Self‐Assembly Engineering for Patterning Two‐Dimensional Polymers with Cylindrical Mesopores on Graphene
Author(s) -
Tian Hao,
Qin Jieqiong,
Hou Dan,
Li Qian,
Li Chen,
Wu ZhongShuai,
Mai Yiyong
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201903684
Subject(s) - supercapacitor , materials science , nanotechnology , polyaniline , mesoporous material , graphene , planar , capacitance , nanomaterials , polymer , conductive polymer , electrode , composite material , polymerization , computer science , chemistry , biochemistry , catalysis , computer graphics (images)
Abstract Free‐standing 2D porous nanomaterials have attracted considerable interest as ideal candidates of 2D film electrodes for planar energy storage devices. Nevertheless, the construction of well‐defined mesopore arrays parallel to the lateral surface, which facilitate fast in‐plane ionic diffusion, is a challenge. Now, a universal interface self‐assembly strategy is used for patterning 2D porous polymers, for example, polypyrrole, polyaniline, and polydopamine, with cylindrical mesopores on graphene nanosheets. The resultant 2D sandwich‐structured nanohybrids are employed as the interdigital microelectrodes for the assembly of planar micro‐supercapacitors (MSCs), which deliver outstanding volumetric capacitance of 102 F cm −3 and energy density of 2.3 mWh cm −3 , outperforming most reported MSCs. The MSCs display remarkable flexibility and superior integration for boosting output voltage and capacitance.