Journal of Materials Science, Vol.56, No.3, 2385-2398, 2021
Hard template-assisted N, P-doped multifunctional mesoporous carbon for supercapacitors and hydrogen evolution reaction
Nonmetal mesoporous carbon exhibits environment friendliness and low cost, which attract much attention in energy storage and conversion. In this work, a N, P-doped mesoporous carbon (NPMC-T) was synthesized by the SiO(2)hard template. The mesoporous structure and high N, P content for NPMC-T are beneficial to expose more active sites and accelerate electron transfer, and contribute to exhibit remarkable electrocatalytic activity for supercapacitors and hydrogen evolution reaction application. NPMC-800 is applied as electrode material for supercapacitors and exhibits high specific capacitance (219 F g(-1)at 1 A g(-1)). Meanwhile, the NPMC-T is used as electrocatalyst for HER and shows the good electrocatalytic performance with small Tafel slope of 52 mV dec(-1), low overpotential of 298 mV (10 mA cm(-2)) than that of most other reported analogous catalysts, and excellent stability (after 2000 cycles). This effective capability of N, P-doped multifunctional mesoporous carbon materials is expected to promote the application in supercapacitors and hydrogen evolution reaction widely.