Bidimensional solvation and delocalisation of electrons at the surface of an insulating oxide: The role of surface hydroxyl groups on MgO

被引：13

作者：

Chiesa, M ^{[1
]}

Paganini, MC ^{[1
]}

Giamello, E ^{[1
]}

机构：

[1] Univ Turin, IFM, Dipartimento Chim, Ctr Excellence,NIS, I-10125 Turin, Italy

来源：

CHEMPHYSCHEM | 2004年 / 5卷 / 12期

关键词：

EPR spectroscopy; hydroxylation; nanostructures; surface chemistry; UV/Vis spectroscopy;

D O I：

10.1002/cphc.200400466

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：

(Graph presented) Surface electron tuning: Combined EPR and UV/Vis-NIR spectroscopic studies bring evidence for excess electron delocalisation at the surface of MgO as a function of hydroxyl coverage (see picture). The presence of surface hydroxyl groups induces domains of interacting paramagnetic centres on the surface of MgO providing a way of tuning the degree of electron delocalisation on the surface.

引用

页码：1897 / 1900

页数：4

共 27 条

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