Article Dans Une Revue Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces Année : 2000

Neutron diffraction investigation of water on MgO(001) surfaces, from monolayer to bulk condensation

Résumé

The structure of D2O molecules adsorbed on MgO(001) surfaces has been studied by neutron diffraction within the 200–273 K temperature range and at coverages (θ) of 0.93, 1.5, 4 and 20 monolayers (ML). At low coverage (θ≤1.5 ML) and whatever the temperature, the two-dimensional (2D) analysis of the monolayer structure is compatible with the previously observed p(3×2) commensurate phase, but presenting a short coherence length of 35±5 Å. At higher coverages, we show that this 2D ordered phase coexists with the bulk phase. These results confirm the outstanding stability of the water monolayer adsorbed on MgO(001) found by recent molecular dynamics calculations.

Dates et versions

hal-03002434 , version 1 (12-11-2020)

Identifiants

Citer

Benjamin Demirdjian, Jean Suzanne, Daniel Ferry, Jean-Paul Coulomb, Livia Giordano. Neutron diffraction investigation of water on MgO(001) surfaces, from monolayer to bulk condensation. Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, 2000, 462 (1-3), pp.L581-L586. ⟨10.1016/S0039-6028(00)00615-4⟩. ⟨hal-03002434⟩
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