Activation of biomass-derived porous carbon for supercapacitors: A review

Due to the advantages of renewable, low pollution and wide distribution of biomass resources, it is selected as the electrode material for supercapacitors. For carbon-based electrode materials, specific surface area (SSA) and pore structure have a great influence. Exploring and summarizing the influence of activation on pore structure will greatly broaden this field. Based on the activation mechanism of activator, this paper summarizes the latest progress of biomass activation applied to supercapacitors, including traditional physical and chemical activation methods and non-traditional methods such as biological activation method, self-activation method template assisted activation method and green activator activation. Finally, the challenges, strategies and prospects for the future development of biomass-derived carbon material activation are pointed out. In summary, this review will help researchers choose appropriate strategies to design biomass-derived carbon electrode materials for supercapacitors, thereby promoting the application of biomass materials.