|
|||||
|
|
Partial stripping of Ag atoms from silver bilayer on a Au(111) surface accompanied with the reductive desorption of hexanethiol SAM |
|
| Authors: | Toshihiro Kondo Kazuhisa Tamura Satoru Takakusagi Ken Kitamura Masamitu Takahasi Jun’ichiro Mizuki Kohei Uosaki |
| Institution: | (1) Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1, Ohtsuka, Bunkyo-ku, Tokyo 112-8610, Japan;(2) Japan Atomic Energy Agency, Koto, Sayo-cho, Hyogo 679-5148, Japan;(3) Physical Chemistry Laboratory, Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan |
| Abstract: | The interfacial structures of Ag bilayer prepared by underpotential deposition on Au(111) (Ag(2ML)/Au(111)) were determined by ex situ scanning tunneling microscopy and in situ surface X-ray scattering measurements before and after oxidative adsorption and after reductive desorption of a self-assembled monolayer (SAM) of hexanethiol (C6SH) in alkaline ethanol solution. While no structural change was observed after oxidative formation of C6SH SAM on the Ag(2ML)/Au(111) in an ethanol solution containing 20 mM KOH and 0.1 mM C6SH, some of the Ag atoms in the bilayer were stripped when the SAM was reductively desorbed. Dedicated to Professor J. O’M. Bockris on the occasion of his 85th birthday. |
| Keywords: | Au(111) Ag underpotential deposition (UPD) Self-assembled monolayer (SAM) Surface X-ray scattering (SXS) Scanning tunneling microscope (STM) |
| 本文献已被 SpringerLink 等数据库收录！ | |