Boron and nitrogen functionalities were successfully integrated into hierarchical porous carbon (HPC) synthesized via a low cost and scalable ice-templation method. The boron and nitrogen co-doped HPC sample (HPC-N-B) exhibits good electrochemical cyclostability of more than 600 cycles as supercapacitor electrode with 7% nitrogen content and 0.9% boron content. The heteroatoms doping enhanced the performance of supercapacitor by achieving high specific capacitance (217.9 F/g) compared to that of un-doped HPC (114 F/g) at scan rate of 2 mV/s in 6 M KOH electrolyte. This superior supercapacitor performance can be attributed to the pseudocapacitance mechanism of storing energy, which was enabled by nitrogen and boron functionalities.

Boron and nitrogen functionalized hierarchical porous carbon for supercapacitor

256th National Meeting (2018)

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