Effects of Anions on Electrochemical Reactions of Silver Shells on Gold Nanorods
Effects of Anions on Electrochemical Reactions of Silver Shells on Gold Nanorods
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DOI：
10.1021/jp306469s
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发表时间：
2013-02
影响因子：
3.7
通讯作者：
Yuki Hamasaki;N. Nakashima;Y. Niidome
中科院分区：
文献类型：
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作者：
Yuki Hamasaki;N. Nakashima;Y. Niidome
Au-Ag 核壳纳米棒银壳的氧化还原反应在五种电解质（KBr、KCl、K2HPO4/KH2PO4、KNO3 和 KClO4）中进行。光谱变化表明银壳的氧化和还原。银壳在循环伏安图测量的正扫描中溶解。在磷酸盐存在的情况下，金属银在电极上的沉积受到抑制，并且可以观察到金纳米棒上的银壳沉积。在其他电解质中，银离子以金属银纳米颗粒的形式沉积在 ITO 板上。
Redox reactions of the silver shells of Au–Ag core–shell 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.