Effects of anions on electrochemical reactions of silver shells on gold nanorods

Yuki Hamasaki, Naotoshi Nakashima, Yasuro Niidome

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)

    Abstract

    Redox reactions of the silver shells of Au-Ag core-shell nanorods were performed in five electrolytes (KBr, KCl, K2HPO4/KH 2PO4, 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.

    Original languageEnglish
    Pages (from-to)2521-2530
    Number of pages10
    JournalJournal of Physical Chemistry C
    Volume117
    Issue number6
    DOIs
    Publication statusPublished - Feb 14 2013

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Energy(all)
    • Physical and Theoretical Chemistry
    • Surfaces, Coatings and Films

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