Hierarchical porous carbon materials with high capacitance derived from Schiff-base networks.
A type of hierarchical porous carbon material was prepared using a Schiff-base network as the precursor and ZnCl2 as the activation agent, and their electrochemical performances were investigated in acid and alkaline aqueous solutions, respectively. The as-prepared materials have high surface areas, appropriate distributions of hierarchical pore sizes, and various forms of nitrogen/oxygen derivatives. These structural advantages guarantee the outstanding performances of such carbon materials as electrodes for supercapacitors, which include high specific capacitances, fast current responses, and high cycling stabilities.
Department of Chemistry and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China.
Ji-Shi
JS
Wei
Department of Chemistry and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China.
Hui
H
Ding
Department of Chemistry and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China.
Yong-Gang
YG
Wang
Department of Chemistry and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China.
Huan-Ming
HM
Xiong
Schiff-base networks; carbon materials; dope; porous; supercapacitors