Surface segregation of bismuth atoms in Ag-Bi alloys (based on results obtained by traditional electrochemical methods and the laser heating-induced temperature potential shift)

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• 作者：V.A. Safonov^a ; ^{safon@elch.chem.msu.ru} ; M.A. Choba^a ; A.G. Krivenko^b ; R.A. Manzhos^b
• 关键词：Eutectic Ag-Bi alloy ; Surface segregation ; Cyclic voltammetry ; Impedance ; Laser heating-induced temperature potential shift ; Double layer capacitance ; Model description
• 刊名：Journal of Electroanalytical Chemistry
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：785
• 期：Complete
• 页码：109-116
• 全文大小：586 K
• 卷排序：785

文摘

Time effects on renewed electrode of eutectic-type Ag–Bi alloys in NaF are studied. Observed time effects are shown to be a result of surface segregation of Bi atoms. Surface segregation of Bi atoms is realized by their surface (not bulk) diffusion.