THE INTERACTION OF HYDROGEN WITH THE (110) SURFACE OF NIAL

SURFACE SCIENCE

卷:331

Article; Proceedings Paper

HANBICKI, AT ; BADDORF, AP ; PLUMMER, EW ; HAMMER, B ; SCHEFFLER, M

关键词: ALLOYS;    ATOM-SOLID INTERACTIONS, SCATTERING, DIFFRACTION;    ATOM-SOLID REACTIONS;    HYDROGEN;    NIAL;    SURFACE RELAXATION AND RECONSTRUCTION;   

DOI  :  10.1016/0039-6028(95)00376-2

来源: Elsevier

【 摘 要 】

The adsorption of hydrogen onto the (110) surface of the ordered alloy NiAl is being investigated experimentally and theoretically. At this stage, the experimental and theoretical results are complementary. Experiment reveals that the dissociative adsorption of atomic hydrogen is activated and indicates that the presence of H on the surface causes dramatic changes in the atomic positions of the Ni and Al atoms. Density functional theory for a (1 x 1) H overlayer identifies the H bonding site as the Ni-Ni bridge and predicts the surface rippling on clean NiAl(110) is removed by hydrogen.

【 授权许可】

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