Potassium adsorption and reaction with water on MgO(100)

被引：17

作者：

Huang, HH

Jiang, X

Zou, Z

Chin, WS

Xu, GQ

Dai, WL

Fan, KN

Deng, JF

机构：

[1] Natl Univ Singapore, Dept Chem, Singapore 119260, Singapore

[2] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China

来源：

SURFACE SCIENCE | 1998年 / 412-13卷

关键词：

insulating surfaces; low index single crystal surfaces; magnesium oxides; metallic films; potassium; thermal desorption spectroscopy; water; x-ray photoelectron spectroscopy;

D O I：

10.1016/S0039-6028(98)00488-9

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：

The growth of potassium him on MgO(100) and its effect on coadsorption of D2O have been investigated by core-level photoemission studies. XPS results indicate that K-atoms initially bind with surface oxygen of MgO(100), growing from 2D at theta(K) < 1 ML to 3D clusters with additional K-deposition. Coadsorbed D2O reacts actively with both K-adatoms and surface Mg2+ at 295 K, forming hydroxyl groups with O 1s BE in the range 530-533 eV. (C) 1998 Elsevier Science B.V. All rights reserved.

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收藏

页码：555 / 561

页数：7

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