Porous structure design of carbon xerogels for advanced supercapacitor

Xichuan Liu, Shaomin Li, Rui Mi, Jun Mei, Li-Min Liu, Liujun Cao, Woon-Ming Lau and Hao Liu

Applied Energy, 2015, vol. 153, issue C, 32-40

Abstract: 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 4279m2g−1 when used as electrode for supercapacitor, which deliver a high specific capacitance of 271Fg−1 with excellent cycle stability and good rate capability.

Keywords: Nitrogen-doped; Hierarchically porous structures; Ultrahigh surface area; Supercapacitor (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (2)

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DOI: 10.1016/j.apenergy.2015.01.141

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