Hydrogen adsorption on alkali metal surfaces: Wetting, prewetting and triple-point wetting

G. Mistura; H. C. Lee; M. H.W. Chan

doi:10.1007/BF00754739

Hydrogen adsorption on alkali metal surfaces: Wetting, prewetting and triple-point wetting

G. Mistura, H. C. Lee, M. H.W. Chan

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Abstract

We report the results of a quartz microbalance study of the multilayer adsorption of H₂ and D₂ on sodium and on rubidium. On sodium H₂ and D₂ display the well known phenomenon of triple-point wetting. Interestingly low temperature adsorption isotherms of H₂ on the evaporated Na surface show sharp layering transitions. On rubidium a weaker substrate H₂ and D₂ undergo a wetting transition in the liquid phase followed by sharp presetting transitions away from liquid-vapor coexistence. The prewetting phase diagram of H₂ on Rb has been quantitatively mapped out.

Original language	English (US)
Pages (from-to)	221-244
Number of pages	24
Journal	Journal of Low Temperature Physics
Volume	96
Issue number	5-6
DOIs	https://doi.org/10.1007/BF00754739
State	Published - Sep 1 1994

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics

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10.1007/BF00754739

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title = "Hydrogen adsorption on alkali metal surfaces: Wetting, prewetting and triple-point wetting",

abstract = "We report the results of a quartz microbalance study of the multilayer adsorption of H2 and D2 on sodium and on rubidium. On sodium H2 and D2 display the well known phenomenon of triple-point wetting. Interestingly low temperature adsorption isotherms of H2 on the evaporated Na surface show sharp layering transitions. On rubidium a weaker substrate H2 and D2 undergo a wetting transition in the liquid phase followed by sharp presetting transitions away from liquid-vapor coexistence. The prewetting phase diagram of H2 on Rb has been quantitatively mapped out.",

author = "G. Mistura and Lee, {H. C.} and Chan, {M. H.W.}",

year = "1994",

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volume = "96",

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journal = "Journal of Low Temperature Physics",

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T1 - Hydrogen adsorption on alkali metal surfaces

T2 - Wetting, prewetting and triple-point wetting

AU - Mistura, G.

AU - Lee, H. C.

AU - Chan, M. H.W.

PY - 1994/9/1

Y1 - 1994/9/1

N2 - We report the results of a quartz microbalance study of the multilayer adsorption of H2 and D2 on sodium and on rubidium. On sodium H2 and D2 display the well known phenomenon of triple-point wetting. Interestingly low temperature adsorption isotherms of H2 on the evaporated Na surface show sharp layering transitions. On rubidium a weaker substrate H2 and D2 undergo a wetting transition in the liquid phase followed by sharp presetting transitions away from liquid-vapor coexistence. The prewetting phase diagram of H2 on Rb has been quantitatively mapped out.

AB - We report the results of a quartz microbalance study of the multilayer adsorption of H2 and D2 on sodium and on rubidium. On sodium H2 and D2 display the well known phenomenon of triple-point wetting. Interestingly low temperature adsorption isotherms of H2 on the evaporated Na surface show sharp layering transitions. On rubidium a weaker substrate H2 and D2 undergo a wetting transition in the liquid phase followed by sharp presetting transitions away from liquid-vapor coexistence. The prewetting phase diagram of H2 on Rb has been quantitatively mapped out.

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JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 5-6

ER -

Hydrogen adsorption on alkali metal surfaces: Wetting, prewetting and triple-point wetting

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