Control of the interface graphitized/amorphous carbon of biomass-derived carbon microspheres for symmetric supercapacitors.

ABSTRACT: Rational interface control of porous carbon electrode materials is of significance for achieving efficient supercapacitors. Herein, biomass-derived carbon microspheres with a highly graphitized porous surface and amorphous subsurface were well constructed via a flexible coupled catalysis-activation process. The unique structure not only endows the carbon microspheres with rapid electron transfer but also an ultra-high specific surface area. Owing to the optimized graphitized/amorphous structure, the obtained graphitized and activated starch-derived carbon microspheres display obviously impressive energy storage capability among the reported starch-derived carbon materials, even though they were evaluated in a narrow voltage window. The assembled symmetrical supercapacitor based on t

SUBMITTER: Wang H 

PROVIDER: S-EPMC9418735 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature