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  • Title(Kor)
    복합 TiN-Al2O3 합성과 수소투과도 특성 평가
  • Title(Eng)
    Composite TiN-Al203 Syntheses and Hydrogen Permeability Characteristics Evaluation
  • Keyword
    Hydrogen(수소), Separator(분리막), Alumina(알루미나), Hydrogen permeability(수소투과도), Hydrogen energy(수소에너지)
  • Author(Kor)
    조경원1⋅이영환2⋅한정흠2⋅유제선2⋅홍태환2†
  • Author(Eng)
    KYOUNG-WON CHO1, YOUNG-HWAN LEE2, JEONG-HEUM HAN2, JE-SEON YU2, TAE-WHAN HONG2†
  • Date
    2020-04
  • Attach file
  • Page
    Page. 177~183
  • Abstract(Eng)
  • To utilize hydrogen energy, high-yield, high-purity hydrogen needs to be produced; therefore, hydrogen separation membrane studies are being conducted. The membrane reactor that fabricates hydrogen needs to have high hydrogen permeability, selective permeability, heatresistant and a stable mechanical membrane. Dense membranes of Pd and Pd alloys are usually used, but these have drawbacks associated with high cost and durability. Therefore, many researchers have studied replacing Pd and Pd alloys. Dense TiN membrane is highly selective and can separate high-purity hydrogen. The porous alumina has a high permeation rate but low selectivity; therefore, separating high-purity hydrogen is difficult. To overcome this drawback, the two materials are combined as composite reclamations to produce a separation membrane with a high penetration rate and high selectivity. Accordingly, TiN-alumina was manufactured using a high-energy ball mill. The TiN-alumina membrane was characterized by X-ray diffraction analysis, scanning electron microscopy, and energy dispersive spectroscopy. The hydrogen permeability of the TiN-alumina membrane was estimated by a Sievert-type hydrogen permeation membrane apparatus. Due to the change in the diffusion mechanism, the transmittance value was lower than that of the general TiN ceramic separator.