NMR Study of Adsorption of Hydrogen on Copper

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概要

• 論文の詳細を見る

• Adsorbed states of H on Cu surfaces have been studied by measurements of the NMR line width and the Knight shift of the proton and ^63Cu using fine Cu powder. The line width of the proton decreases with increase of temperature from 0.4 Gauss at 120 K to 0.06 Gauss at 300 K.This decrease is attributed to the surface migration of hydrogen adatoms, of which the activation energy is found to be 2.0±0.3 kcal/mol. The Knight shift of the proton is 0.0094±0.0005%. The relation between the electronic nature of adsorption bond and the proton Knight shift is discussed. It is concluded that 4s conduction electrons participate. in chemisorption of H on Cu surfaces. NMR results of ^63Cu are the same as bulky copper.

• 社団法人応用物理学会の論文
• 1975-11-05

著者

• ITO Taro

  Research Institute for Catalysis, Hokkaido University

• Kadowaki Toru

  Research Institute For Catalysis Hokkaido University

• Kadowaki Toru

  Research Institute For Catalysis Holckaido University

• Ito Taro

  Research Institute For Catalysis Hokkaido University

• Ito Taro

  Research Institute For Catalysis Holckaido University

関連論文

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• Superfluid ^4He Films Adsorbed on Pt Packed Powder : I. QUANTUM LIQUIDS AND SOLIDS : He in Restricted Geometry
• A Semiquantum Liquid and a New Ordered Phase of ^4He Adsorbed in Y Zeolite
• Heat Capacities of ^3He and ^4He in the Restricted Geometry of Na-Y Zeolite
• Linewidth of ^Nb NMR Absorption Curve in Nb_V_H_x
• NMR Study of Hydrogen Adsorbed on Copper-Nickel Alloys
• NMR Study of Adsorption of Hydrogen on Copper
• NMR Study of Adsorption of Hydrogen on Tungsten
• NMR and Susceptibility Studies of V-Doped Ti_2O_3

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