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首页> 美国政府科技报告 >Office of Naval Research End-of-Year ReportPublications/Patents/Presentations/Honors/ Student Report: Applications of Scanning Tunneling Microscopy to Electrochemistry
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Office of Naval Research End-of-Year ReportPublications/Patents/Presentations/Honors/ Student Report: Applications of Scanning Tunneling Microscopy to Electrochemistry

机译：海军研究办公室年终报告出版物/专利/演示文稿/荣誉/学生报告：扫描隧道显微镜在电化学中的应用

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摘要

The focus of research in the last year has been STM(Scanning TunnelingMicroscopy) studies of electrode/solution interfaces. STM, and its derivatives (e.g. AFM, Atomic Force Microscopy) are the only surface analytic methods capable of yielding real-space, atomic resolution, electronic and structural maps of immersed electrode surfaces. To achieve this goal, in the previous contract period we have developed STM tip preparation methodologies that enable atomic resolution imaging of electrode surfaces in solutions containing high (0.1 M) concentrations of electro donor and acceptor species. These techniques have significantly extended the applicability of STM to electrochemical investigations. Recent STM investigations of electrochemical systems have focused on elucidating the structure of adsorbate monolayers and of single strands of conducting polymers. Recently we have also used these ultra small STM tips to perform measurements of very rapid heterogeneous electron transfer rate constants at electrodes as small as 1 nanometer in radius. Keywords: Electrochemistry, Adsorbate monolayers, Conducting polymers, UME, Nanodes, HOPG, Highly ordered pyrolytic graphite surfaces. (JG)

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