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

  • 제18권3호
  • /
  • Pages.334-341
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  • 2007
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

Al/Pd 박막의 수소 흡수 동역학[$\alpha$상]

Hydrogen Absorption Kinetics on Al/Pd Film in the $\alpha$ Phase

  • 발행 : 2007.09.15
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초록

Al film(135.5 nm thick) with Pd film(39.6 nm thick) was made by thermal evaporation method. Electrical resistance change by hydrogen absorption and desorption was measured with four point measurement method. Even though Al film(135.5 nm thick) did not absorb any hydrogen at room temperature, Al/Pd film absorbed hydrogen at upto 640 torr pressure. Hydrogen absorption kinetics was monitored by measuring resistance change of the sample in the temperature range from $25^{\circ}C$ to $40^{\circ}C$. Absorption activation energy of Al/Pd film was about 10.7 and 17.7 kcal/mol H for 1st stage and last stage respectively at 1 torr hydrogen pressure. This activation values are bigger than that of Pd film, but are much less than that of Al film. This result indicates there is possibility that Al can be storage material for hydrogen by using Pd film evaporation on it.

키워드

참고문헌

  1. 김길환, '수소에너지', 현대과학신서 113, 전파과학사, 서울, 1981
  2. 김종원 외, '알기 쉬운 수소 에너지', 수소에너지 사업단, 한국수소 및 신에너지학회, 2005
  3. J. Volkl and G. Aleford, 'Topics in Applied Physics', G. Alefeld and J. volkl ed., Springer, New York, Vol. 28, 1978
  4. J. Volkl and G. Aleford, 'Topics in Applied Physics', G. Alefeld and J. volkl ed., Springer, New York, Vol. 29, 1978
  5. M. A. Butler, D. S. Ginley, 'Hydrogen sensing with palladium-coated optical fibers', J. Appl. Phys., Vol. 64, No. 7, 1988, pp. 3706-3712 https://doi.org/10.1063/1.341414
  6. R. C. Hughes, W. K. Schubert, 'Thin films of Pd/Ni alloys for detection of high hydrogen concentrations', J. Appl. Phys. Vol. 71, No. 1, 1992, pp. 542-544 https://doi.org/10.1063/1.350646
  7. D. E. Azofeifa, N. Clark, A. Amador, A. Saenz, 'Determination of hydrogen absorption in Pd coated Al thin films', Thin Solid Films, Vol. 300, 1997, pp. 295-298 https://doi.org/10.1016/S0040-6090(96)09493-X
  8. W. M. Mueller, J. P. Blackledge, G. G. Libowitz, 'Metal Hydrides', Academic Press, London and New York, 1968
  9. F. A. Lewis, 'The Palladium Hydrogen System', Academic Press, London and New York, 1967
  10. Young-sin Cho, J. S. Lee and C. W. Kim, 'The hydrogen absorption kinetics in very thin Pd film($\alpha$ phase)', 한국수소 및 신에너지학회논문집, Vol. 9, No. 1, 1998, pp. 25-30
  11. 조영신, 'pdHx 박막의 광투과도', 한국소소 및 신에너지학회 논문집, Vol. 12, No.3, 2001, pp. 201-209
  12. C. M. Stander, 'Kinetics of decomposition of magnesium hydride', J. of Inorg. Nucl. Chem., Vol. 37, 1977, pp. 221-223