고체 산화물 연료전지 음극에서 개질 가스의 경쟁적 전기화학 반응

Competitive electrochemical oxidation of reformate gas in SOFCs

  • 김용민 (한국과학기술원 기계공학과) ;
  • 배중면 (한국과학기술원 기계공학과) ;
  • 배규종 (한국과학기술원 기계공학과) ;
  • 김정현 (한국과학기술원 기계공학과) ;
  • 이창보 (한국과학기술원 기계공학과)
  • 발행 : 2008.05.22

초록

SOFC (Solid oxide fuel cell) has an advantage in the term of fuel flexibility, comparing with other kinds of fuel cells. In SOFC and fuel reformer cooperation system, the reformate gas with the various $H_2$/CO ratios is delivered into the anode of SOFC. In this situation, electrochemical oxidation reactions of the reformate gas in the anode are complex and competitive. In this paper, the effects of the composition of $H_2$ and CO on the overall electrochemical oxidation at Ni-YSZ anode are studied by testing the open circuit voltage (OCV) and current-voltage characteristics of single cells.

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