Electrochemical Oxidation of Silver Shells on Gold Nanorods in Potassium Chloride and Phosphate Buffer Solutions

• Yuki Hamasaki

  Department of Applied Chemistry, Kyushu University

• Naotoshi Nakashima

  Department of Applied Chemistry, Kyushu University

• Yasuro Niidome

  Department of Applied Chemistry, Kyushu University

抄録

Electrochemical oxidation of silver shells on gold nanorods was examined using in situ spectroscopy and scanning electron microscopy. The oxidation, in a phosphate buffer solution, was suppressed because of the formation of Ag3PO4. In contrast, oxidation in a KCl solution occurred at the corners of the nanorods and proceeded until giving gold nanorods without silver shells. After the 10-s electrolysis, nanoparticles with different shapes were found on the electrode. The inhomogeneous oxidation was due to rapid oxidation of the silver shells and occasional contact of the nanorods with the electrode surfaces.

収録刊行物

• Chemistry Letters

  Chemistry Letters 42 (9), 1093-1095, 2013-06-05

  Oxford University Press (OUP)

キーワード

• General Chemistry

詳細情報

• CRID: 1360002219105401600
• NII論文ID: 10031194353
• NII書誌ID: AA00603318
• DOI: 10.1246/cl.130350
• ISSN: 13480715
• ISSN: 03667022
• Web Site: https://academic.oup.com/chemlett/article-pdf/42/9/1093/55642445/cl.130350.pdf
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