한국재료학회지 (Korean Journal of Materials Research)

  • 제31권5호
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  • Pages.264-271
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  • 2021
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  • 1225-0562(pISSN)
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  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
권호 표지
DOI QR코드

DOI QR Code

슈퍼커패시터용 멜라민 폼으로부터 질소가 자가 도핑된 다공성 탄소 재료의 제조

Fabrication of Nitrogen Self-Doped Porous Carbons from Melamine Foam for Supercapacitors

  • 이병민 (충남대학교 고분자공학과) ;
  • 장형석 (충남대학교 고분자공학과) ;
  • 최재학 (충남대학교 고분자공학과) ;
  • 홍성권 (충남대학교 고분자공학과)
  • Lee, Byoung-Min (Department of Polymer Science and Engineering, Chungnam National University) ;
  • Chang, Hyeong-Seok (Department of Polymer Science and Engineering, Chungnam National University) ;
  • Choi, Jae-Hak (Department of Polymer Science and Engineering, Chungnam National University) ;
  • Hong, Sung-Kwon (Department of Polymer Science and Engineering, Chungnam National University)
  • 투고 : 2021.04.01
  • 심사 : 2021.04.16
  • 발행 : 2021.05.27
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초록

Porous carbons have been widely used as electrode material for supercapacitors. However, commercial porous carbons, such as activated carbons, have low electrochemical performance. Nitrogen-doping is one of the most promising strategies to improve electrochemical performance of porous carbons. In this study, nitrogen self-doped porous carbon (NPC) is prepared from melamine foam by carbonization to improve the supercapacitive performance. The prepared NPC is characterized in terms of the chemical structures and elements, morphology, pore structures, and electrochemical performance. The results of the N2 physisorption measurement, X-ray diffraction, and Raman analyses reveal that the prepared NPC has bimodal pore structures and pseudo-graphite structures with nitrogen functionality. The NPC-based electrode exhibits a gravimetric capacitance of 153 F g-1 at 1 A g-1, a rate capability of 73.2 % at 10 A g-1, and an outstanding cycling ability of 97.85 % after 10,000 cycles at 10 A g-1. Thus, the NPC prepared in this study can be applied as electrode material for high-performance supercapacitors.

키워드

과제정보

This work was supported by the research fund of Chungnam National University.

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