In situ STM study of underpotential deposition of bismuth on Au(1 1 0) in perchloric acid solution期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

In situ STM study of underpotential deposition of bismuth on Au(1 1 0) in perchloric acid solution

Authors:	Masanori Hara Junji Inukai Soichiro Yoshimoto

Affiliation:	^a Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, 6-6-04 Aoba, Sendai 980-8579, Japan ^b NICHe, Tohoku University, 6-6-10 Aoba, Sendai 980-8579, Japan ^c CREST, JST, 4-1-8 Kawaguchi, Saitama 332-0012, Japan

Abstract:	The underpotential deposition (UPD) of Bi on Au(1 1 0) was investigated in HClO₄ solution using in situ scanning tunneling microscopy. The UPD of Bi occurred in three steps. A structure, in which Bi atoms formed dimers, was found for the first UPD adlayer. A (1 × 1) image was obtained by STM at the second UPD peak. For the third UPD peak, Bi atoms formed an incommensurate adlayer, and stripes of Bi were observed on terraces. After the third UPD, a structural reconstruction caused by adsorbed Bi was observed.

Keywords:	Au(1 1 0) Bi UPD In situ STM
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