Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8016086 | Materials Letters | 2016 | 4 Pages |
Abstract
The novel route for preparation of high-performance porous carbon from corn starch by a one-step process of chemical activation with H3PO4 was studied in this paper. The resulting porous carbon showed a high specific surface area of 1167 m2 gâ1 and a large pore volume of 1.80 cm3 gâ1. The maximum specific capacitance was up to 162 F gâ1 at a current density of 0.625 A gâ1, which was higher than commercial carbon (100 F gâ1). Meanwhile, the electrode exhibited larger energy density (22.5 Wh kgâ1 at a power density of 313 W kgâ1) and longer cycle stability with above 93% capacitance retention after 5000 cycles. The better capacitive behavior was ascribed to unique pore structure, which indicated the porous carbon will be an ideal electrode material for supercapacitor.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Liyun Pang, Bo Zou, Xue Han, Liyuan Cao, Wei Wang, Yupeng Guo,