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Interconnected honeycomb-like porous carbon derived from plane tree fluff for high performance supercapacitors

Journal Article


Abstract


  • Three-dimensional interconnected honeycomb-like porous carbon (IHPC-800) is successfully fabricated via activated and graphitized plane tree fluff with the aid of Co2+ and KOH in a synthetic process at 800 °C. The as-prepared IHPC-800 exhibits advantageous structural features for application in supercapacitors (SCs), including interconnected pathways, high specific surface area (1154 m2 g-1), large pore volume (0.78 cm3 g-1), heteroatom doping, and full graphitization. This material possesses a very high charge storage capacity with a specific capacitance of 493 F g-1 in 2 M H2SO4 in a three-electrode system at a current density of 0.2 A g-1. It exhibits excellent cycle stability, even over 10000 cycles with a capacity retention of more than 96%. The energy density of 42.8 W h kg-1 is also verified with 1 M LiPF6 in EC/DEC as the organic electrolyte at a power density of 299 W kg-1. The excellent electrochemical performance and facile effective synthesis of bio-derived carbon materials point to an economical and feasible strategy for the large-scale production of high performance SCs.

Authors


  •   Zhang, Yunqiang (external author)
  •   Liu, Xuan (external author)
  •   Wang, Shulan (external author)
  •   Dou, Shi Xue
  •   Li, Li (external author)

Publication Date


  • 2016

Citation


  • Zhang, Y., Liu, X., Wang, S., Dou, S. Xue. & Li, L. (2016). Interconnected honeycomb-like porous carbon derived from plane tree fluff for high performance supercapacitors. Journal of Materials Chemistry A, 4 (28), 10869-10877.

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2128

Number Of Pages


  • 8

Start Page


  • 10869

End Page


  • 10877

Volume


  • 4

Issue


  • 28

Abstract


  • Three-dimensional interconnected honeycomb-like porous carbon (IHPC-800) is successfully fabricated via activated and graphitized plane tree fluff with the aid of Co2+ and KOH in a synthetic process at 800 °C. The as-prepared IHPC-800 exhibits advantageous structural features for application in supercapacitors (SCs), including interconnected pathways, high specific surface area (1154 m2 g-1), large pore volume (0.78 cm3 g-1), heteroatom doping, and full graphitization. This material possesses a very high charge storage capacity with a specific capacitance of 493 F g-1 in 2 M H2SO4 in a three-electrode system at a current density of 0.2 A g-1. It exhibits excellent cycle stability, even over 10000 cycles with a capacity retention of more than 96%. The energy density of 42.8 W h kg-1 is also verified with 1 M LiPF6 in EC/DEC as the organic electrolyte at a power density of 299 W kg-1. The excellent electrochemical performance and facile effective synthesis of bio-derived carbon materials point to an economical and feasible strategy for the large-scale production of high performance SCs.

Authors


  •   Zhang, Yunqiang (external author)
  •   Liu, Xuan (external author)
  •   Wang, Shulan (external author)
  •   Dou, Shi Xue
  •   Li, Li (external author)

Publication Date


  • 2016

Citation


  • Zhang, Y., Liu, X., Wang, S., Dou, S. Xue. & Li, L. (2016). Interconnected honeycomb-like porous carbon derived from plane tree fluff for high performance supercapacitors. Journal of Materials Chemistry A, 4 (28), 10869-10877.

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2128

Number Of Pages


  • 8

Start Page


  • 10869

End Page


  • 10877

Volume


  • 4

Issue


  • 28