Journal
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Volume 104, Issue -, Pages 372-377Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2013.06.010
Keywords
Activated carbon; Coal-tar pitch; Rosin; Chemical activation
Funding
- National Natural Science Foundation of China [51272045]
- Natural Science Foundation of Fujian Province of China [2010J01280]
Ask authors/readers for more resources
Co-pyrolysis product of coal-tar pitch and rosin was used as a precursor to prepare high surface area activated carbons (ACs) by KOH activation. The influences of AC precursor origin, KOH/AC precursor weight ratio and activation time on the pore characteristics of the ACs were investigated, and meanwhile their electrochemical performance was studied. The results show that adding rosin results in a decrease in the C/H atomic ratio of AC precursor as well as a significant increase in its mesophase content, which favors the porosity development in ACs during KOH activation. The effect of adding rosin on the porosity characteristics of the ACs can be illustrated by increases in the BET surface area from 1846 to 2847 m(2)/g and the total pore volume from 1.09 to 1.57 cm(3)/g. In addition, the ACs possess good electrochemical performance, as indicated by that they have a maximum specific capacitance of 203 F/g and exhibit good rectangular-shaped I-V curves in cyclic voltammetry. (C) 2013 Elsevier B.V. All rights reserved.
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