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One-pot synthesis of CuPt nanodendrites with enhanced activity towards methanol oxidation reaction

机译:一锅法合成具有增强的甲醇氧化反应活性的CuPt纳米枝晶

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CuPt nanodendrites have special electrocatalytic performance due to their unique morphologies and structures. In this work, we report a facile and one-pot synthesis of highly branched and dispersed CuPt nanodendrites with a size of about 22?nm and Pt/Cu ratio of 2?:?1. X-ray photoelectron spectra indicate a Pt-rich surface of the prepared CuPt nanodendrites. The combination of a highly branched structure with a Pt-rich shell would be very beneficial for catalytic properties, which was confirmed by electrochemical tests towards MOR. A systematic study on morphology evolution of the products and understanding of their growth mechanism was carried out using the effects of reaction time and reducing agents.
机译:CuPt纳米树枝状晶体由于其独特的形态和结构而具有特殊的电催化性能。在这项工作中,我们报道了一种高度分支和分散的CuPt纳米枝晶的简便,一锅合成方法,其尺寸约为22?nm,Pt / Cu比为2?:?1。 X射线光电子能谱表明所制备的CuPt纳米树枝晶的富Pt表面。高支化结构与富Pt壳的结合对催化性能非常有利,这已通过针对MOR的电化学测试得到证实。利用反应时间和还原剂的影响,对产物的形态演变进行了系统的研究,并了解了它们的生长机理。

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