Fluorinated activated carbon with superb kinetics for the supercapacitor application in nonaqueous electrolyte

Mok Hwa Kim, Jung Hoon Yang, Yong Mook Kang, Sun Min Park, Joong Tark Han, Kwang Bum Kim, Kwang Chul Roh

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Fluorinated activated carbon (F-AC) exhibits significantly improved electrochemical capacitive performance compared to raw activated carbon (R-AC). F-AC electrode shows a specific capacitance coming up to 19.8Fcm-3, whereas the capacitance of R-AC electrode is 18.4Fcm-3. Besides, the kinetic enhancement of F-AC is also memorable. This phenomenon indicates that F-AC tends to form electric double-layer ions on its surface more rapidly than does R-AC. This formation is a result of the increased electrical conductivity attributed to the semi-ionic bonding character between fluorine and activated carbon. The electrochemical improvement of F-AC proves that fluorination is a very effective method for providing greater possibilities for supercapacitor applications of AC in nonaqueous electrolytes.

Original languageEnglish
Pages (from-to)535-539
Number of pages5
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume443
DOIs
Publication statusPublished - 2014 Feb 20

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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