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A Self‐Supporting Electrode for Supercapacitors Prepared by One‐Step Pyrolysis of Carbon Nanotube/Polyacrylonitrile Blends
Author(s) -
Béguin F.,
Szostak K.,
Lota G.,
Frackowiak E.
Publication year - 2005
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.200402103
Subject(s) - polyacrylonitrile , supercapacitor , materials science , carbon nanotube , electrode , pyrolysis , capacitance , nanotube , composite material , chemical engineering , carbon fibers , nanotechnology , composite number , polymer , chemistry , engineering
A new type of supercapacitor electrode is reported, prepared by pressing a carbon nanotube/polyacrylonitrile blend and then pyrolyzing the pellet (see Figure). Although their specific surface area is very low, e.g., 200 m 2 g –1 , the C/C composites demonstrate high values of capacitance, up to 100 F g –1 . The authors propose two explanations for these remarkable values.