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Porous structure design of carbon xerogels for advanced supercapacitor.

Tipo de material: TextoTextoSeries ; Applied Energy, 153, p.32-40, 2015Trabajos contenidos:
  • Liu, X
  • Li, S
  • Mi, R
  • Mei, J
  • Liu, L. M
  • Cao, L
  • Liu, H
Tema(s): Recursos en línea: Resumen: A porous carbon electrode incorporating considerations both heteroatom doping and pore structure design with: combination of melamine and PEO-PPO-PEO (polyethylene oxide-polypropylene oxide-polyethylene oxide)micelles for the nitrogen-doping and optimization the micron-duct formation; integration of CO2-etching into the carbonization process for the formation of abundant micropores. The structure of these nitrogen-doped carbon xerogels (NCXs)are indeed comprised of a multi-scaled pores having nano-porous carbon in a network of micron-size percolated hollow-channels. The resulted material has an ultrahigh surface area of 4279 m2 g?1 when used as electrode for supercapacitor, which deliver a high specific capacitance of 271 F g?1 with excellent cycle stability and good rate capability.
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A porous carbon electrode incorporating considerations both heteroatom doping and pore structure design with: combination of melamine and PEO-PPO-PEO (polyethylene oxide-polypropylene oxide-polyethylene oxide)micelles for the nitrogen-doping and optimization the micron-duct formation; integration of CO2-etching into the carbonization process for the formation of abundant micropores. The structure of these nitrogen-doped carbon xerogels (NCXs)are indeed comprised of a multi-scaled pores having nano-porous carbon in a network of micron-size percolated hollow-channels. The resulted material has an ultrahigh surface area of 4279 m2 g?1 when used as electrode for supercapacitor, which deliver a high specific capacitance of 271 F g?1 with excellent cycle stability and good rate capability.

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