Abstract
One-dimensional (1D) nanostructures have been identified as the most viable structures for high-performance supercapacitors from the view of high ion-accessible surface area and rapid electron transport path as well as excellent mechanical properties. Herein, we report a "stripping and cutting" strategy to produce 1D carbon nanobelts (CNB) from tofu with irregular structures through a molten salts assisted technique. It is a completely novel and green avenue for constructing 1D carbon materials from biomass, showing large commercial potential. The resultant CNB electrode delivers a high specific capacitance (262 F g-1at 0.5 A g-1) and outstanding cycling stability with capacitance retention up to 102% after 10000 continuous charging/discharging cycles. Additionally, a CNB//CNB symmetric supercapacitor and CNB//MnO2-CNB asymmetric supercapacitor are assembled and reach energy densities of 18.19 and 29.24 W h kg-1, respectively. Therefore, such a simple, one-pot and low-cost process may have great potential for preparing eco-friendly biomass-derived carbon materials for high-performance supercapacitor electrodes.
Original language | English |
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Pages (from-to) | 14551-14561 |
Number of pages | 11 |
Journal | Journal of Materials Chemistry A |
Volume | 5 |
Issue number | 28 |
DOIs | |
Publication status | Published - 1 Jan 2017 |
ASJC Scopus subject areas
- Chemistry(all)
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)