作者
Min-Jung Jung, Euigyung Jeong, Seok Kim, Sang Ick Lee, Jung-Sang Yoo, Young-Seak Lee
发表日期
2011
期刊
JOURNAL OF FLUORINE CHEMISTRY
卷号
132
页码范围
1127-1133
简介
The surface of phenol-based activated carbon (AC) was fluorinated at room temperature with different F2:N2 gas mixtures for use as an electrode material in an electric double-layer capacitor (EDLC). The effect of surface fluorination on EDLC electrochemical performance was investigated. The specific capacitance of the fluorinated AC-based EDLC was measured in a 1M H2SO4 electrolyte, in which it was observed that the specific capacitances increased from 375 and 145Fg−1 to 491 and 212Fg−1 with the scan rates of 2 and 50mVs−1, respectively, in comparison to those of an unfluorinated AC-based EDLC when the fluorination process was optimized via 0.2bar partial F2 gas pressure. This enhancement in capacitance can be attributed to the synergistic effect of increased polarization on the AC surface, specific surface area, and micro and mesopore volumes, all of which were induced by the fluorination …
学术搜索中的文章
MJ Jung, E Jeong, S Kim, SI Lee, JS Yoo, YS Lee - Journal of Fluorine Chemistry, 2011