Journal
APPLIED PHYSICS LETTERS
Volume 83, Issue 6, Pages 1216-1218Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1599963
Keywords
-
Categories
Ask authors/readers for more resources
Poly(acrylonitrile) solutions in dimethylformamide were electrospun to be webs consisting of 300 nm ultrafine fibers. The webs were oxidatively stabilized and activated by steam resulting in activated carbon nanofibers (ACNFs). The specific surface area of the ACNF activated at 700 degreesC was the highest but mesopore volume fraction of that was lowest. On the other hand, the ACNFs activated at 800 degreesC showed opposite trends to those activated at 700 degreesC. The high specific surface area, mainly due to the micropores, introduced maximum specific capacitance at low current density (173 F/g at 10 mA/g). The elevated volume fraction of mesopores gave maximum specific capacitance at high current density (120 F/g at 1000 mA/g). The behavior is explained on the basis of ion mobility in the pores. (C) 2003 American Institute of Physics.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available