THE PHOTOCHEMICAL IDENTIFICATION OF 2 CHEMISORPTION STATES FOR MOLECULAR-OXYGEN ON TIO2(110)

被引：125

作者：

LU, GQ

LINSEBIGLER, A

YATES, JT

机构：

[1] Surface Science Center, Department of Chemistry, University of Pittsburgh, Pittsburgh

来源：

JOURNAL OF CHEMICAL PHYSICS | 1995年 / 102卷 / 07期

关键词：

D O I：

10.1063/1.468609

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：

We report the first experimental observation of two chemisorption states for molecular oxygen on a TiO2(110) surface containing anion vacancy sites. The first molecular species can be photoactivated to oxidize coadsorbed CO to CO2 (α channel) and undergoes slow photodesorption. The second molecular oxygen species only undergoes fast photodesorption (β channel). Conversion from α-O2, to β-O2 occurs upon heating the surface to above 200 K. © 1995 American Institute of Physics.

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页码：3005 / 3008

页数：4

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