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首页> 美国政府科技报告 >Optical and Electrochemical Investigation of Ruthenium and Iridium and Their Oxides in Relation to Their Electrocatalytic Activity. Final Report
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Optical and Electrochemical Investigation of Ruthenium and Iridium and Their Oxides in Relation to Their Electrocatalytic Activity. Final Report

机译：钌，铱及其氧化物的光电化学研究及其电催化活性。总结报告

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We have investigated a number of the optical, vibrational, electrochemical and surface properties of oriented single crystals of RuO sub 2 . Some investigations have also been performed on oriented single cyrstal IrO sub 2 . The purpose of these studies was to develop a general microscopic understanding of the nature of the electrocatalytic activity of these important transition metal oxides. The near-normal incidence reflectivity of single crystal RuO sub 2 and IrO sub 2 was measured, enabling us to exact the energy dependence of the optical constants. These were compared to theoretical density of states calculations to obtain important information about the electronic energy levels. The surface structure of RuO sub 2 (110) has been studied using Low Energy Electron Diffraction, Auger Electron Spectroscopy and X-ray Photoemission Spectroscopy (XPS). For the well-ordered surface the oxygen XPS results reveal oxygen associated with bulk RuO sub 2 , the presence of RuO sub 3 and oxygen bound to surface atoms. In addition we have studied the nucleation and growth of silver crystallites on oriented RuO sub 2 (110) single crystals. 54 refs., 25 figs., 4 tabs. (ERA citation 11:023189)

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