POLAR SURFACES OF OXIDES - REACTIVITY AND RECONSTRUCTION

被引：124

作者：

CAPPUS, D ^{[1
]}

HASSEL, M ^{[1
]}

NEUHAUS, E ^{[1
]}

HEBER, M ^{[1
]}

ROHR, F ^{[1
]}

FREUND, HJ ^{[1
]}

机构：

[1] RUHR UNIV BOCHUM,D-44780 BOCHUM,GERMANY

来源：

SURFACE SCIENCE | 1995年 / 337卷 / 03期

关键词：

COBALT OXIDES; ELECTRON ENERGY LOSS SPECTROSCOPY; IRON OXIDE; LOW ENERGY ELECTRON DIFFRACTION (LEED); NICKEL OXIDES; PHOTOELECTRON SPECTROSCOPY;

D O I：

10.1016/0039-6028(95)00624-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polar oxide (111) surfaces are prepared on thin films of NiO, CoO and FeO. In the limit of completely ionic rock salt type crystal structures these (111) surfaces, whether they are oxygen or metal terminated, show a tendency for reconstruction. We show that the unreconstructed polar surfaces are OH covered, and, after OH removal, the surface reconstructs. We show that this is true for NiO(111). For CoO(111) the stability of the oxide film does not allow the removal of OH, so that the reconstruction cannot be observed. The FeO(111) surface is permanently reconstructed and we show that for FeO(111) grown on Fe(110) the surface is not of Fe3O4(111) type.

引用

页码：268 / 277

页数：10

共 32 条

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