Extending an in situ scanning tunneling microscopic study to rough electrode surfaces - iodine adsorption at silver electrodes
Date
2000-06-06Author
Shi, CH
Cai, XW
Chen, YA
Chen, YX
Tian, ZQ
田中群
Mao, BW
毛秉伟
Collections
- 化学化工-已发表论文 [14235]
Abstract
We demonstrate some unique properties of a rough silver electrode surface revealed by the atomic-resolution electrochemical scanning tunneling microscopy (ECSTM) measurements. Taking the well-known system of iodine adsorption, we observed distinctly different iodine adlayer structures and surface diffusion behavior on mechanically polished polycrystalline silver electrodes in comparison with those on single-crystal electrodes. The results indicate the need to extend atomic-resolution STM studies to rough surfaces of practical importance. (C) 2000 Published by Elsevier Science B.V. All rights reserved.