The adsorption of H2 and D2 on Fe(110)
作者： Edward A. Kurz , John B. Hudson
DOI: 10.1016/0039-6028(88)90777-7
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摘要: Abstract Results of thermal energy atom scattering (TEAS) measurements H 2 and D adsorption-desorption kinetics on Fe(110) are presented in detail, with emphasis the strengths pitfalls inherent this recently developed technique. It is shown that, for system, adlayer coverage directly related to height specularly scattered peak from an incident helium atomic or deuterium molecular beam. The was used monitor surface concentration as adsorption desorption occurred, at equilibrium. Measurements were carried out both constant temperatures during temperature programmed desorption. cross sections hydrogen found be 3.4 3.5 A , respectively. section adsorbed measured 11.0 . initial sticking coefficient rate independent second order, activation energies 26.5 kcal/mol (D ) 25.0 (H ). isosteric heats 24.7 24.2
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