Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Fabrication of Mesoporous Carbon from Polyvinylidene Chloride(PVDC)-resin Precursor with Mg(OH)2 Template for Supercapacitor Electrode

슈퍼 커패시터용 전극을 위한 Polyvinylidene chloride(PVDC)-resin과 Mg(OH)2 템플릿으로부터 메조기공 탄소의 제조

  • Hwang, Beodl (School of Materials Sciences and Engineering, Kyungpook National University) ;
  • Chun, Sang-Eun (School of Materials Sciences and Engineering, Kyungpook National University)
  • 황버들 (경북대학교 신소재공학부) ;
  • 전상은 (경북대학교 신소재공학부)
  • Received : 2019.11.25
  • Accepted : 2019.12.18
  • Published : 2019.12.31
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Abstract

The microporous carbon derived from PVDC-resin by a simple heat-treatment under an inert atmosphere exhibits a reasonable specific capacitance for a supercapacitor's electrode. However, the capacitance was rapidly decreased at high charge/discharge rate. The micropores present in an electrode surface hinder the entrance of an electrolyte ion onto the entire surface. To induce the meso-sized pores during the carbonization of PVDC-resin, Mg(OH)2 was utilized as a hard template. The porous carbon made from the mixture of PVD-Cresin and Mg(OH)2 include mesopores as well as micropores. The induced mesopores does not homogeneously distributed on the entire surface of the synthesized carbon. The PVDC-resin and Mg(OH)2 are dissolved in the dimethylformamide for the hard template to evolve the pores on the synthesized carbon uniformly. The carbon made from PVDC-resin with solvent and a hard template contains mostly mesopores resulting in the high power performance. The reduced amount of solvent in the precursor derives the carbon with high specific surface area and high power density.

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References

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