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首页> 外文期刊>International Journal of Electrochemical Science >A Novel Synthetic Strategy for Pd3Sn Nanoparticles Loaded Reduced Graphene Oxide as Electrocatalyst for the Ethanol-Tolerant Oxygen Reduction Reaction
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A Novel Synthetic Strategy for Pd3Sn Nanoparticles Loaded Reduced Graphene Oxide as Electrocatalyst for the Ethanol-Tolerant Oxygen Reduction Reaction

机译：负载还原型氧化石墨烯的Pd3Sn纳米粒子作为乙醇抗氧还原反应电催化剂的新合成策略

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摘要

A novel, two-step chemical reduction route is suggested to synthesize highly active and well-dispersedPd3Sn alloy nanoparticles supported on chemically reduced graphene oxide (rGO) for the alcohol- tolerant oxygen reduction reaction. In this work, molecular-level dispersions of individuals are easilyobtained, and graphene oxide is served as the stablization agent for Pd3Sn nanoparticles, and as carbonsupport which is co-deposited with metal or alloy particles. Transmission electron microscopy, Ramanand powder X-ray diffraction results show that Pd and Pd3Sn nanoparticles are finely-dispersed onmulti-layer rGO with well-controlled particle sizes, dispersities and composition uniformities.Electrochemical measurements confirm that Pd3Sn/rGO exhibites higher oxygen reduction activity andalcohol-tolerant ability than the Pd/rGO thanks to the smaller sizes of Pd3Sn nanoparticles and thestrong interaction between metal and rGO. This new strategy provides a facile route to synthesizemulticomponent alloy loaded rGO composites for use in electro-catalysis.
机译：提出了一种新颖的两步化学还原路线，以合成高活性且分散良好的Pd3Sn合金纳米粒子，该纳米粒子负载在化学还原的氧化石墨烯（rGO）上，用于耐醇的氧还原反应。在这项工作中，很容易获得个体的分子水平分散体，并且氧化石墨烯用作Pd3Sn纳米颗粒的稳定剂，以及与金属或合金颗粒共沉积的碳载体。透射电镜，拉曼光谱和粉末X射线衍射结果表明，Pd和Pd3Sn纳米颗粒分散在多层rGO上，具有良好的粒径，分散性和组成均匀性，电化学测量证实Pd3Sn / rGO具有较高的氧还原活性和醇由于Pd3Sn纳米粒子的尺寸较小，并且金属与rGO之间的相互作用强，因此具有比Pd / rGO更高的耐受能力。该新策略为合成多组分合金负载的rGO复合材料提供了一条简便的途径，用于电催化。

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