Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Hydrogen Storage Properties of Mg-10wt.%MnO Prepared by Reactive Mechanical Grinding

반응성 기계적 분쇄에 의해 제조한 Mg-10wt.% MnO의 수소 저장 성질

  • Song, Myoung-Youp (Division of Advanced Materials Engineering, Research Center of Industrial Technology, Engineering Research Institute, Chonbuk National University) ;
  • Kwon, Ik-Hyun (Division of Advanced Materials Engineering, Research Center of Industrial Technology, Engineering Research Institute, Chonbuk National University) ;
  • Kwon, Sung-Nam (Division of Advanced Materials Engineering, Research Center of Industrial Technology, Engineering Research Institute, Chonbuk National University) ;
  • Park, Chan-Gi (Division of Advanced Materials Engineering, Research Center of Industrial Technology, Engineering Research Institute, Chonbuk National University) ;
  • Bae, Jong-Soo (Nanopowder Materials Group, Materials Technology Department, Korea Institute of Machinery & Materials)
  • 송명엽 (전북대학교 공학연구원 공업기술연구센터 신소재공학부) ;
  • 권익현 (전북대학교 공학연구원 공업기술연구센터 신소재공학부) ;
  • 권성남 (전북대학교 공학연구원 공업기술연구센터 신소재공학부) ;
  • 박찬기 (전북대학교 공학연구원 공업기술연구센터 신소재공학부) ;
  • 배종수 (한국기계연구원 재료연구부 나노분말재료그룹)
  • Published : 2005.03.15
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Abstract

수소 분위기에서 10wt.%MnO와 기계적인 분쇄(반응성 기계적 분쇄)에 의해 Mg의 수소 저장 성질을 향상시켰다. 회전 속도는 250 rpm, 밀링시간은 2 h, 그리고 시료 대 볼 중량비는 1/45이었다. 준비한 Mg-10wt.%MnO 시료는 활성화를 위한 수소화물 형성 분해 싸이클링이 필요없었으며, 첫 번째 싸이클 593k 12 bar $H_2$에서, 10분 동안에 3.12wt.%, 60분 동안에 3.95wt.%의 수소를 흡수하였다. 또한 Mg-10wt.%MnO는 593k 0.8 bar $H_2$에서 60분 동안에 2.12wt.%의 수소를 방출하였다. MnO와 Mg의 방응성 분쇄는, 핵생성을 용이케하고 (Mg 입자의 표면에 결함 형성과 첨가물에 의해), Mg 입자의 표면에 crack을 만들어 Mg의 입자 크기를 줄여 그 결과 수소 원자의 확산 거리를 작게 함으로써 수소 흡수 방출 속도를 증가시킨다. 수소화물 형성 분해 싸이클링은 Mg 입자의 표면에 crack을 만들고 Mg의 입자 크기를 줄여 수소 흡수 방출 속도를 증가시킨다.

Keywords

References

  1. D. L. Douglass: 'The Formation and Dissociation of Magnesium Alloy Hydrides and Their Use for Fuel Storage in the Hydrogen Car', Metall. Trans., vol. A6, 1975, p. 2179
  2. M. H. Mintz, Z. Gavra and Z. Hadari: 'Kinetic Study of the Reaction between Hydrogen and Magnesium, catalyzed by Addition of Indium', J. Inorg. Nucl. Chem., vol. 40, 1978, p. 756
  3. Q. Wang, J. Wu, M. Au and J. Zhang: 'The Hydrogen Storage Properties and the Mechanism of the Hydriding Process of Some Multi Component Magnesium Base Hydrogen Storage Alloys', in 'Hydrogen Energy Progress V', Proceedings 5th World Hydrogen Energy Conference, Toronto, Canada, July 1984. Vol. 3, edited by T. N. Veziroglu and J. B. Taylor (Pergamon, New York), 1984, p. 1279
  4. M.Y. Song, M. Pezat, B. Darriet, J. Y. Lee and P. Hagenmuller: 'A Hydriding Kinetic Model of the $Mg_{2}Ni_{2}$ System', J. Mater. Sci., vol. 21, 1986, p. 346 https://doi.org/10.1007/BF01144743
  5. F. G. Eisenberg, D. A. Zagnoli and J. J. Sheridan Ill: 'The Effect of Surface Nickel on the Hydriding Dehydriding Kinetics of MgH2', J. Less Common Met., vol. 74, 1980, p. 323 https://doi.org/10.1016/0022-5088(80)90170-8
  6. M.Y. Song: 'Improvement in Hydrogen Storage Characteristics of Magnesium by Mechanical alloying with Nickel', J. Mater. Sci., vol. 30, 1995, p. 1343 https://doi.org/10.1007/BF00356142
  7. M.Y. Song, E.I. Ivanov, B. Darriet, M. Pezat and P. Hagenmuller: 'Hydriding Properties of a Mechanically Alloyed Mixture with a composition $MG_2Ni$', Int. J. Hydrogen Energy, vol. 10, No.3, 1985, p. 169 https://doi.org/10.1016/0360-3199(85)90024-2
  8. M.Y. Song, E. I. Ivanov, B. Darriet, M. Pezat and P. Hagenmuller: 'Hydriding Dehydriding Characteristics of Mechanically Alloyed Mixtures Mg wt.%Ni(x = 5, 10, 25 and 55)', J. Less Common Met., vol. 131, 1987, p. 71 https://doi.org/10.1016/0022-5088(87)90502-9
  9. M.Y. Song: 'Effects of Mechanical Alloying on the Hydrogen Storage Characteristics of Mg x wt.%Ni(x = 5, 10, 25 and 55) Mixtures', Int. J. Hydrogen Energy, vol. 20, No.3, 1995, p. 221 https://doi.org/10.1016/0360-3199(94)E0024-S
  10. M.Y. Song: 'Development of Mg-10wt.%Ni Hydrogen-Storage Alloy by Mechanical Alloying', J. of the Korean Hydrogen Energy Society, vol. 9, No.4, 1998, p. 143
  11. J L. Bobet, E. Akiba, Y. Nakamura and B. Darriet: 'Study of Mg Ni and Fe) Mixture Elaborated by Reactive Mechanical Alloying Hydrogen Sorption Properties', Int. J. Hydrogen Energy, vol. 25, 2000, p. 987 https://doi.org/10.1016/S0360-3199(00)00002-1
  12. M.Y. Song, I.H. Kwon, S.N. Kwon, C.G. Park and 1.S. Bae: 'Preparation of Hydrogen Storage Alloy Mg wt.%Fe203 under Various Milling Conditions', Collected Papers of Korean Hydrogen and New Energy Society Autumn Annual Meeting 2004, p. 293
  13. M.Y. Song, D.S. Ahn, l.H. Kwon, H.J. Ahn: 'Development of Hydrogen storage Alloys by Mechanical Alloying Mg with Fe and Co', Metals and Materials International, vol. 5, No.5, 1999, p. 485 https://doi.org/10.1007/BF03026163