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Partial stripping of Ag atoms from silver bilayer on a Au(111) surface accompanied with the reductive desorption of hexanethiol SAM

Kondo, Toshihiro*; Tamura, Kazuhisa  ; Takakusagi, Satoru*; Kitamura, Ken*; Takahashi, Masamitsu; Mizuki, Junichiro; Uosaki, Kohei*

The interfacial structures of Ag bilayer prepared by underpotential deposition on Au(111) were determined by STM and SXS before and after oxidative adsorption and after desorption of a SAM of C$$_{6}$$SH in alkaline ethanol solution. While no structural change was observed after oxidative formation of C$$_{6}$$SH SAM on the Ag/Au(111) in an ethanol solution containing 20 mM KOH and 0.1 mM C$$_{6}$$SH, some of the Ag atoms in the bilayer were stripped when the SAM was reductively desorbed.



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