Effects of Anions on Electrochemical Reactions of Silver Shells on Gold Nanorods

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• 作者：Yuki Hamasaki ; Naotoshi Nakashima ; Yasuro Niidome
• 刊名：The Journal of Physical Chemistry C
• 出版年：2013
• 出版时间：February 14, 2013
• 年：2013
• 卷：117
• 期：6
• 页码：2521-2530
• 全文大小：696K
• 年卷期：v.117,no.6(February 14, 2013)
• ISSN：1932-7455

文摘

Redox reactions of the silver shells of Au鈥揂g core鈥搒hell nanorods were performed in five electrolytes (KBr, KCl, K₂HPO₄/KH₂PO₄, KNO₃, and KClO₄). The spectral changes indicated oxidation and reduction of the silver shells. Silver shells were dissolved in the positive sweeps of the cyclic voltammogram measurements. In the presence of phosphate, deposition of metallic silver on the electrode was suppressed, and silver shell deposition on gold nanorods was observable. In the other electrolytes, the silver ions were deposited as metal silver nanoparticles on the ITO plate.