Study on the properties of hierarchical lignin nanoparticles-based porous carbon using template method
Lignin nanoparticles(LNP)as the carbon precursor is used to prepare hierarchical porous carbon using template methods in this study.In comparison to the porous carbons(SLC,FLC)prepared with a single template method,the LNP-based porous carbon(FSLC)is fabricated using nano-SiO2 coupled with PluronicF127 as double templates.This approach results in a honeycomb-like structure with typical mesoporous characteristics for FSLC,achieving a mesoporous ratio of up to 87%.As a supercapacitor electrode,FSLC demonstrates good electrochemical performance,with a mass specific capacitance of 250 F/g at a current density of 0.5 A/g,representing a 163%increase over mass specific capacitance(95 F/g)of the SLC.The dual-template method for producing high-performance porous carbon offers a novel approach for utilizing lignin in energy storage application.
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