A New in Situ Optical Microscope with Single Atomic Layer Resolution for Observation of Electrochemical Dissolution of Au(111)

作者：Wen Rui; Lahiri Abhishek; Azhagurajan Mukkannan; Kobayashi Shin ichiro; Itaya Kingo^*

来源：Journal of the American Chemical Society, 2010, 132(39): 13657-13659.

DOI：10.1021/ja106231x

Monatomic steps with a height of 0.25 nm on ultraflat Au(111) surfaces during electrochemical dissolution can be seen for the first time by a laser confocal microscope combined with a differential interference contrast microscope (LCM-DIM). Atomic force microscopy images were acquired in the same area in order to confirm that the step lines observed by LCM-DIM are mostly monatomic steps with the height of 0.25 nm. Successively recorded LCM-DIM images indicated that the anodic dissolution of Au(111) takes place only at step edges in solutions containing chloride anions at potentials near the onset of anodic current.

• 出版日期2010-10-6