Supplementary information from Novel biomass-derived smoke-like carbon as a supercapacitor electrode material
journal contributionposted on 23.07.2019 by Mingxu Chu, Mingtang Li, Zhaolian Han, Jinshan Cao, Rui Li, Zhiqiang Cheng
Any type of content formally published in an academic journal, usually following a peer-review process.
In this present work, smoke-like carbon was successfully fabricated from a bio-waste fungal substrate crude polysaccharide for the first time. The as-prepared products possess smoke-like structures, ultra-high specific surface area (SBET: 2160 m2 g−1) and a high content of micropores (microporous surface area of 60%, with a nanopore size of 0.70 nm), which can increase the specific capacitance, representing a wonderful structure for electrochemical energy storage devices. The as-prepared sample displayed an excellent specific capacitance of 152 F g−1 at 5 A g−1 in the three-electrode configuration and exhibited maximal densities of 6.8–10.2 W h kg−1 under power outputs of 253.4–24.3 kW kg−1. We believe that this work demonstrates a simple, green and low-cost route by using agricultural residue to prepare applicable carbon materials for use in energy storage devices.