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中文摘要：
采用自发沉积法在Ru膜上生成超薄Pt层（简称Ru／Pt膜），即在开路状态下将电化学还原后的Ru膜浸于除去氧的H2PtCl6溶液中进行自发沉积．电化学伏安法测量表明，随着电还原自发沉积循环次数的增加，该Ru／Pt膜电极所含Pt组分增加，且CO吸附层的电氧化峰电位较Pt膜电极上的明显负移．应用现场衰减全反射表面增强红外光谱法（ATR—SEIRAS）可轻易检测到在该膜电极Pt和Ru位上吸附CO的振动谱峰．所制Ru／Pt膜电极不仅对CO的电催化氧化具有协同效应，还可应用于现场ATR—SEIRAS的研究中．
英文摘要：
A spontaneous deposition approach was developed to form a Pt ultrathin overlayer onto a Ru nanoparticle film （simplified hereafter as Ru/Pt film） in which the freshly electroreduced Ru film was subsequently immersed in a deaerated H2PtCl6 solution without potential control. Voltammetric measurements indicated that Pt content increased with the number of the reduction-immersion cycles, and CO adlayer could be electro-oxidized at a much lower potential on the Ru/Pt film electrode than on a Pt film electrode. With in situ attenuated-total-reflection surface-enhanced IR absorption spectroscopy （ATR-SEIRAS）, CO molecules adsorbed on both Pt and Ru sites of the Ru/Pt film electrode could be easily identified. In addition to a synergetic effect towards the electrocatalytic oxidation of CO, this as-deposited Ru/Pt film can be applicable to in situ ATR-SEIRAS measurements.
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