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The adsorption of hydrogen on the rutile TiO2(110) surface

被引：60
作者：
Kunat, M [1 ]
Burghaus, U
Wöll, C
机构：
[1] Ruhr Univ Bochum, Fak Chem, D-44780 Bochum, Germany
[2] N Dakota State Univ, Dept Chem & Mol Biol, Fargo, ND 58105 USA
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2004年 / 6卷 / 16期
关键词：
D O I：
10.1039/b404629c
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 adsorption of hydrogen on a well defined single crystal rutile TiO2(110) surface has been investigated using helium atom scattering ( HAS). Whereas the adsorption probability of molecular hydrogen was below the detection limit (S < 2 x 10(-7)), the hydrogen adlayers were prepared by exposing the clean surface to atomic hydrogen. The results reveal the formation of a H(1 x 1) TiO2(110) surface. In addition, the adsorption and desorption kinetics were studied by monitoring the reflectivity of the surface for helium atoms. The analysis of the data yielded two desorption maxima with activation energies for desorption of 99 kJ mol(-1) and 162 kJ mol(-1).
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页码：4203 / 4207
页数：5
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