Electrochemical role of oxygen containing functional groups on activated carbon electrode

We have experimentally and theoretically clarified the effect of oxygen functional groups on the capacitive performance of a photochemically treated activated carbon electrode. A high density of CO groups at the mouth of the micropores, where the chemically active edge sites are predominantly avail...

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Bibliographic Details
Published inRSC advances Vol. 4; no. 107; pp. 62678 - 62683
Main Authors Tojo, Tomohiro, Sakurai, Kengo, Muramatsu, Hiroyuki, Hayashi, Takuya, Yang, Kap-Seung, Jung, Yong Chae, Yang, Cheol-Min, Endo, Morinobu, Kim, Yoong Ahm
Format Journal Article
LanguageEnglish
Published 01.01.2014
Subjects
Activated carbon
Barriers
Capacitance
Electrodes
Functional groups
High density
Oxygen
Porosity
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Summary:We have experimentally and theoretically clarified the effect of oxygen functional groups on the capacitive performance of a photochemically treated activated carbon electrode. A high density of CO groups at the mouth of the micropores, where the chemically active edge sites are predominantly available, increases the energy barrier for ions to enter the pores, thereby resulting in a large decrease in the specific capacitance.
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SourceType-Scholarly Journals-1
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ISSN:2046-2069
2046-2069
DOI:10.1039/C4RA10439K