Reconstruction and electrochemical oxidation of Au(110) surface in 0.1 M H2SO4

Koji Yoshida, Akiyoshi Kuzume, Peter Broekmann, Ilya V. Pobelov, Thomas Wandlowski

    研究成果: Article査読

    17 被引用数 (Scopus)


    Variations of the surface structure and composition of the Au(110) electrode during the formation/lifting of the surface reconstruction and during the surface oxidation/reduction in 0.1 M aqueous sulfuric acid were studied by cyclic voltammetry, scanning tunneling microscopy and shell-isolated nanoparticle enhanced Raman spectroscopy. Annealing of the Au(110) electrode leads to a thermally-induced reconstruction formed by intermixed (1×3) and (1×2) phases. In a 0.1 M H2SO4 solution, the decrease of the potential of the atomically smooth Au(110)-(1×1) surface leads to the formation of a range of structures with increasing surface corrugation. The electrochemical oxidation of the Au(110) surface starts by the formation of anisotropic atomic rows of gold oxide. At higher potentials we observed a disordered structure of the surface gold oxide, similar to the one found for the Au(111) surface.

    ジャーナルElectrochimica Acta
    出版ステータスPublished - 2014 9月 1

    ASJC Scopus subject areas

    • 化学工学(全般)
    • 電気化学


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