Eco-friendly synthesis of few-layer graphene with high surface area under low temperature for supercapacitors
| Autor: | Hong Chen, Qidan Ling, Houwen Xiao, Zhang Wengong, Hui Gao, Xiuhua Zhou |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Supercapacitor
Materials science Graphene General Chemical Engineering Layered double hydroxides Nanotechnology 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Capacitance Energy storage 0104 chemical sciences law.invention Chemical engineering law Electrode engineering 0210 nano-technology Current density |
| Zdroj: | Electrochimica Acta. 206:10-16 |
| ISSN: | 0013-4686 |
| DOI: | 10.1016/j.electacta.2016.04.141 |
| Popis: | In this work, few-layered graphene nanosheets (FLG) was prepared through confinement colophony in the 2D galleries of layered double hydroxides (LDH), and followed by transformation of colophony into few-layered graphene at relatively low temperatures (800 °C), as well as a subsequent reflux treatment process. The obtained FLG was tested as supercapacitor electrodes, it exhibits excellent electrochemical performance in terms of specific capacitance (240 F/g at 1 A/g), durability at high current density and long-term operation (95% capacitance retention ratio over 1000 cycles at a current density of 5 A/g). The preparation strategy of lattice orientation/confinement described here provides a convenient, low-cost and eco-friend approach for developing graphene-based energy storage devices. |
| Databáze: | OpenAIRE |
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