Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Partial Reduction and Water Splitting Characteristics of Metal Substituted Ferrite Mediums for Thermochemical Hydrogen Production

열화학 수소 제조를 위한 금속 치환 페라이트 매체의 부분 환원 및 물 분해 특성

  • Lee, Dong-Hee (Department of Fine Chemicals Engineering & Applied Chemistry, BK21-E2M, Chungnam National University) ;
  • Kim, Hong-Soon (Department of Fine Chemicals Engineering & Applied Chemistry, BK21-E2M, Chungnam National University) ;
  • Cha, Kwang-Seo (Department of Fine Chemicals Engineering & Applied Chemistry, BK21-E2M, Chungnam National University) ;
  • Park, Chu-Sik (Korea Institute of Energy Research) ;
  • Kang, Kyung-Soo (Korea Institute of Energy Research) ;
  • Kim, Young-Ho (Department of Fine Chemicals Engineering & Applied Chemistry, BK21-E2M, Chungnam National University)
  • 이동희 (충남대학교 정밀응용화학과 BK21-에너지환경소재사업단) ;
  • 김홍순 (충남대학교 정밀응용화학과 BK21-에너지환경소재사업단) ;
  • 차광서 (충남대학교 정밀응용화학과 BK21-에너지환경소재사업단) ;
  • 박주식 (한국에너지기술연구원) ;
  • 강경수 (한국에너지기술연구원) ;
  • 김영호 (충남대학교 정밀응용화학과 BK21-에너지환경소재사업단)
  • Published : 2007.12.15
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Abstract

The partial reduction and water splitting properties of metal substituted ferrite mediums for two-step thermochemical hydrogen production, were carried out by TPR/O(Temperature programmed reduction/oxidation) method at a temperature of below 1173 K and under atmospheric pressure. $ZrO_2$ was added to the ferrite as a binder to prevent the sintering. As the results, the reactivity of the metal species added to the ferrite mediums decreased in the order of Cu>Co>Ni>Mn, on the basis of water-splitting temperature. It was also found that the produced hydrogen amounts in the water-splitting step on partial reduced mediums were corresponding to the consumed hydrogen amounts in the previously partial reduction step.

Keywords

References

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