Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
권호 표지

Synthesis and Microstructure of Cu/VSZ Composite for High Temperature Electrolysis Cathode

고온수전해 수소극용 Cu/YSZ 복합체의 제조 및 미세구조

  • Kim, Jong-Min (Plant Engineering Center, Institute for Advanced Engineering(IAE)) ;
  • Jung, Hang-Chul (Plant Engineering Center, Institute for Advanced Engineering(IAE)) ;
  • Kang, An-Soo (Department of Chemical Engineering, Myongji Univ.) ;
  • Hong, Hyun-Seon (Plant Engineering Center, Institute for Advanced Engineering(IAE))
  • 김종민 (고등기술연구원 플랜트엔지니어링센터) ;
  • 정항철 (고등기술연구원 플랜트엔지니어링센터) ;
  • 강안수 (명지대학교 화학공학과) ;
  • 홍현선 (고등기술연구원 플랜트엔지니어링센터)
  • Published : 2007.09.15
Download PDF
⟨ Previous Next ⟩

Abstract

The composite powder of Cu and YSZ was synthesized for a high temperature electrolysis cathode by mechanical milling. The average Cu particle size was reduced to 5 micro-meter from 48 micro-meter after the mechanical ball milling. The composite powder showed that Cu particles were uniformly covered with finer YSZ particles. Sub-micron sized pores were uniformly dispersed in the Cu/YSZ composit. Homogeneously-dispersed fine YSZ in the composite is expected to the increase in triple phase boundaries, thereby leading the enhanced performance of cathode.

Keywords

References

  1. 채의석, 홍현선, 추수태, 'Mechanical Alloying Method로 제조된 고온수전해용 Ni/YSZ cermet의 제조 및 특성', Trans. of the Korean Hydrogen and New Energy Society, Vol. 16, No. 4, 2005, 12, pp. 372-378
  2. 채의석, 박근만, 홍현선, 추수태, 윤용승, '고온수전해 전극용 modified Ni/YSZ cermet 제조 및 전극특성', 한국수소 및 신에너지학회 논문집, Vol. 15, No. 2, 2004, pp. 98-107
  3. 허장원, 이동석, 이종호, 김재동, 김주선, 이해원, 문주호, 'SOFC 음극의 기공구조가 음극특성에 미치는 영향', Journal of Korea Ceramic Society, Vol. 39, No, 1, 2001, pp. 86-91
  4. Hyun Seon Hong, Ui-Seok Chae, Soo- Tae Choo, Kyung Sub Lee, 'Microstructure and electrical conductivity of Ni/YSZ and NiO/YSZ composites for high-temperature electrolysis prepared by mechanical alloying', Journal of Power Sources, Vol. 149, 2005, pp. 84-89 https://doi.org/10.1016/j.jpowsour.2005.01.057
  5. Hyun Seon Hong, Ui-Seok Chae and Soo- Tae Choo, 'The effect of ball milling parameters and Ni concentration on a YSZ-coated Ni composite for a high temperature electrolysis cathode', Journal of Alloys and Compounds, In Press, Corrected Proof, Available online 22 January 2007
  6. Takehisa Fukui, Kenji Murata, Satoshi Ohara, Hiroya Abe, Makio Naito, Kiyoshi Nogi, 'Morphology control of Ni/YSZ cermet anode for lower temperature operation of SOFCs', Journal of Power Sources, Vol. 125, 2004, pp. 17-21 https://doi.org/10.1016/S0378-7753(03)00817-6
  7. R. Hino, Katsuhiro Haga, Hideki Aita, Kenji Sekita, 'R&D on hydrogen production by high-temperature electrolysis of steam', Nuclear Engineering and Design, Vol. 233, 2004, pp. 363-375 https://doi.org/10.1016/j.nucengdes.2004.08.029