Pd-4at%Pt合金による水素吸収の動力学的研究

• 万 菊林

• 原 正憲

• 金 瑩

• 渡辺 国昭

書誌事項

タイトル別名

• Kinetics of Hydrogen Absorption by Pd 4 atパーセントPt Alloy
• Kinetics of Hydrogen Absorption by Pd-4at%Pt Alloy

抄録

The kinetics of hydrogen absorption by a Pd-4 at%Pt alloy was studied in the temperature range of 0 to 80 C and pressure from 0.1 to 10 Torr by using a vacuum microbalance. The absorption kinetics extending over the entire absorption curve be analyzed by a diffusion model assuming notable contributions from dissociative adsorption of hydrogen molecules and associative desorption of adsorbed hydrogen atoms on the surface. The activation energies for absorption and desorption were determined to be 4.6 and 9.0 kcal/mol (H2), respectively. Based on these values, the heat of the hydrogen solution was evaluated to be -4.6 kcal/mol (H2), which is in good agreement with the value obtained by thermodynamic study. In addition, the activation energy for diffusion was determined to be 7.1 kcal/mol (H), causing slower hydrogen diffusion in the alloy than Pd.

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 19 9-19, 1999

  富山大学水素同位体科学研究センター

キーワード

• Pt
• Pd

詳細情報

• CRID: 1390572174759586432
• NII論文ID: 110000094727
• NII書誌ID: AA11841872
• ISSN: 09168486
• ISSN: 13463675
• DOI: 10.15099/00006448
• HANDLE: 10110/944
• NDL書誌ID: 5734163
• Web Site: https://toyama.repo.nii.ac.jp/records/6454
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5734163
• 本文言語コード: en
• 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