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Ionic Liquid‐Assisted Synthesis of Microporous Carbon Nanosheets for Use in High Rate and Long Cycle Life Supercapacitors
Author(s) -
Jin ZhenYu,
Lu AnHui,
Xu YuanYuan,
Zhang JinTao,
Li WenCui
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201306273
Subject(s) - supercapacitor , materials science , microporous material , graphene , capacitance , ionic liquid , carbon fibers , nanotechnology , wetting , coating , chemical engineering , electrode , composite material , organic chemistry , composite number , chemistry , engineering , catalysis
Microporous carbon sheets with precisely controlled thickness, narrow pores, short diffusion paths, high electrical conductive networks, and good wettability are synthesized using very low amounts of graphene sheets as a shape‐directing agent via an ionic liquid‐assisted surface coating method. When used as the electrode for supercapacitors, the sheets demonstrate excellent rate capability, good cycle stability, high specific capacitance, and high energy/power density.