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J. Korean Ceram. Soc. > Volume 40(9); 2003 > Article
Journal of the Korean Ceramic Society 2003;40(9): 819.
doi: https://doi.org/10.4191/kcers.2003.40.9.819
Activated Carbons as Electrode Materials in Electric Double-Layer Capacitors I. Electrochemical Properties of Activated Carbons in Relation to their Porous Structures and Surface Oxygen Functional Groups
Chang-Hee Kim, Su-Il Pyun
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology
ABSTRACT
This article is concerned with the overview of activated carbons as electrode materials in electric double-layer capacitors. Firstly, this article introduced various types of activated carbons with their precursors and manufacturing conditions which can be divided into two main steps of the carbonization and activation processes. Secondly, the present article gave the detailed discussion about the porous structures and examined previous works on the electrochemical behaviors of activated carbons in relation to their porous structures, along with our recent works. Finally, this article characterized the surface oxygen functional groups and presented their influence on the electrochemical properties of activated carbons by reviewing our recent results.
Key words: Electric double-layer capacitors, Activated carbons, Electrode materials, Porous structures, Surface oxygen functional groups
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