Femtochemistry at Pt/aqueous solution interfaces as observed by transient reflectivity measurements

被引:14
作者
Hibara, A
Harata, A
Sawada, T
机构
[1] Department of Applied Chemistry, School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku
关键词
D O I
10.1016/S0009-2614(97)00496-X
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
Photo-induced ultrafast responses of a polycrystalline Pt thin-film immersed in aqueous solutions were investigated by transient reflectivity measurements. Solvent dependence was observed to relate to the affinities solute anions had towards the metal surface. Numerical analysis showed a previously unknown relaxation component having a relaxation time of 20 fs. The experimental results were discussed in terms of an interface reaction between adsorbed solute anions and photoexcited electrons in the Pc film, (C) 1997 Elsevier Science B.V.
引用
收藏
页码:1 / 5
页数:5
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