Pd, Pd-4at%Pt及びPt Pd-8at%Ptによる水素吸収の動力学的同位体効果

• 金 瑩

• 原 正憲

• 渡辺 国昭

書誌事項

タイトル別名

• Kinetic Isotope Effects on Hydrogen Absorption by Pd Pd 4atパーセントPt and Pd 8atパーセントPt
• Kinetic Isotope Effects on Hydrogen Absorption by Pd, Pd-4at%Pt and Pd-8at%Pt

抄録

Absorption of protium and deuterium by Pd, Pd-4at%Pt and Pd-8at%Pt powders under 200 mesh was measured in a dilute hydrogen concentration region at temperatures from 0 to 82℃ by recording the decline of hydrogen pressure in an experimental chamber due to hydrogen absorption. These measurements and data analyses gave the adsorption rate, desorption rate and diffusion constants of hydrogen isotopes for the alloys. The absorption was very fast, completed within a few tens of seconds, but there appeared a clear trend of decreases in the rate constants for adsorption, desorption and diffusion with increase in the Pt content in the sample. The activation energies for these rate processes increased with increase in the platinum content. Regarding isotope effects, protium showed a higher adsorption rate but lower desorption rate in the present temperature range. It was also found that protium diffused more slowly than did deuterium in all three samples.

収録刊行物

• 富山大学水素同位体科学研究センター研究報告 = Annual Report of Hydrogen Isotope Research Center, Toyama University

  富山大学水素同位体科学研究センター研究報告 = Annual Report of Hydrogen Isotope Research Center, Toyama University 22 1-10, 2002

  富山大学水素同位体科学研究センター

詳細情報

• CRID: 1390290699782825600
• NII論文ID: 110000952034
• NII書誌ID: AA11841872
• ISSN: 09168486
• ISSN: 13463675
• DOI: 10.15099/00006469
• HANDLE: 10110/963
• NDL書誌ID: 7009489
• Web Site: https://toyama.repo.nii.ac.jp/records/6475
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7009489
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用可