Hypersonic investigation of electrochemical interfaces

被引：5

作者：

Harata, A

Shen, Q

Sawada, T

机构：

[1] Department of Applied Chemistry, Faculty of Engineering, University of Tokyo, Tokyo 113, 7-3-12 Hongo, Bunkyo-ku

来源：

PHYSICA B-CONDENSED MATTER | 1996年 / 219-20卷

关键词：

D O I：

10.1016/0921-4526(95)00834-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Evidence is presented that an electric double layer is observable with hypersonic waves. Potential-dependent behavior of hypersonic waves was investigated with the transient reflecting grating (TRG) method for a gold film (1 mu m) electrode supported on a substrate in acidic solutions. Shapes of initial parts of the TRG-responses were dependent on the potential and composition of the solution. Theoretical calculation showed that longitudinal hypersonic echoes and heat diffusion dominate the initial part for the gold film. The acoustic wavelength of 22 nm is comparable to the thickness of the electric double layer whose structure is potential-dependent. Reflectivity of the hypersonic echoes depends on the potential.

引用

页码：629 / 631

页数：3

共 9 条

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