Mesoporous carbons for supercapacitors obtained by the pyrolysis of block copolymers
Source abstract
Abstract
Novel mesoporous carbons were prepared by the simple pyrolysis of block-copolymers, polyacrylonitrile-b-polystyrene-b-polyacrylonitrile (PAN-b-PS-b-PAN), in which PAN generates a carbon network and PS is released to form mesopores after pyrolysis. The block-copolymers were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization and the molecular weight of each polymer block can be designed to tailor the porous structure of the mesoporous carbons. The carbons have high specific surface areas and a well-controlled mesopore size. The best mesoporous carbon has a high specific capacitance of 185 F g−1 at 0.625 A g−1 with a high power capability and a remarkable cycle stability in 2 mol/L KOH aqueous electrolyte.
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Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Advanced Battery Materials and Technologies · Conducting polymers and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
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