Hierarchical porous carbon prepared using nano-ZnO as template and activation for ultrahigh power supercapacitors

Haoran Wang, Shukai Yu, Bin Xu*

Hierarchical porous carbon materials with high surface areas and a localized graphitic structure were simply prepared from sucrose using nano-ZnO as a hard template, activation agent and graphitization catalyst simultaneously, which exhibit an outstanding high-rate performance and can endure an ultrafast scan rate of 20 V s^-1and ultrahigh current density of 1000 A g^-1.