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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/28306


    Title: In situ scanning tunneling microscopy imaging of mercury film electrodeposited on Ir(111)
    Authors: Wu,HL;Yau,SL;Vogel,W;Zei,MC;Yang,LYO;Itaya,K
    Contributors: 中央大學
    Keywords: IODINE;SURFACE;METAL;DEPOSITION;PT(111);STM
    Date: 2009
    Issue Date: 2010-06-29 19:45:50 (UTC+8)
    Publisher: 化學研究所
    Abstract: In situ scanning tunneling microscopy (STM) was used to examine multilayer Hg film electrodeposited on a well-ordered Ir(111) single crystal electrode in 0.1 M HClO4 + 1 mM Hg(ClO4)(2). Topography STM scans showed that the Ir(111) - supported Hg film electrode contained well-defined terraces separated by monatomic steps (Delta z = 2.3 angstrom). The STM's tip could be used to induce local dissolution of the Hg deposit under proper operating conditions and the depth of the etched pit informed directly the thickness of Hg deposit. Although in situ STM imaging with a tungsten tip could not result in atomic structure of bare Hg film in 0.1 M HClO4, it discerned highly ordered iodine adlayers, represented by a (2 x 8 root 3)rect - 1 structure, on the Hg film in solution containing potassium iodide. These STM results suggested that the Hg substrate could have an ordered atomic structure. (C) 2008 Elsevier B.V. All rights reserved.
    Relation: ELECTROCHEMISTRY COMMUNICATIONS
    Appears in Collections:[Graduate Institute of Chemistry] journal & Dissertation

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