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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Hydrogen Permeation Properties of Ni-based Amorphous Alloys Membrane

Ni-based 비정질 합금막의 수소투과 특성

  • Seok, Song (Advanced Functional Materials Research Center, Korea Institute of Science and Technology(KIST)) ;
  • Lee, Dock-Young (Advanced Functional Materials Research Center, Korea Institute of Science and Technology(KIST)) ;
  • Kim, Yoon-Bae (Advanced Functional Materials Research Center, Korea Institute of Science and Technology(KIST))
  • 석송 (한국과학기술연구원 기능금속연구센터) ;
  • 이덕영 (한국과학기술연구원 기능금속연구센터) ;
  • 김윤배 (한국과학기술연구원 기능금속연구센터)
  • Published : 2008.02.29
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Abstract

Ni-based amorphous alloy ribbon was prepared by a single-roller melt-spinning technique. Palladium coating was found to enhance significantly the absorption/desorption behavior of hydrogen in amorphous alloy. The hydrogen permeability of a Pd-coated $(Ni_{60}Nb_{40}){_{100-X}}$TaX(x=5, 10) amorphous alloy was examined in the temperature range of $623{\sim}773K$, comparable with those of $Pd_{60}-Cu_{40}$ alloys. The permeated hydrogen flux was increased with increasing the temperature and the difference of hydrogen pressure between the feed side and permeates side of the membrane. The Ni-based amorphous alloys were characterized by X-ray diffractometry(XRD) and differential scanning calorimetry(DSC). The morphology of surface and roughness was observed by using scanning electron microscopy(SEM) and atomic force microscopy(AFM).

Keywords

References

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