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Theoretical Model for Nanoporous Carbon Supercapacitors
Author(s) -
Huang Jingsong,
Sumpter Bobby G.,
Meunier Vincent
Publication year - 2008
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.200703864
Subject(s) - supercapacitor , nanoporous , capacitor , curvature , cylinder , mesoporous material , materials science , carbon fibers , electric double layer capacitor , nanotechnology , chemical engineering , composite material , capacitance , mechanical engineering , chemistry , electrical engineering , engineering , mathematics , geometry , electrode , organic chemistry , voltage , composite number , catalysis
Importance of pore curvature : A theoretical model is proposed for nanoporous carbon supercapacitors to replace the commonly used one for an electric double‐layer capacitor (EDLC) on the basis of an electric double‐cylinder capacitor (EDCC) for mesopores, which becomes an electric wire‐in‐cylinder capacitor (EWCC) for micropores (see picture; left to right: decreasing pore size). This model explains the experimental data in various pore ranges, showing the significance of pore curvature.