铂铜合金纳米线的制备及其对乙二醇电催化性能的研究

(10 Points, Times New Roman) Researches have shown that the morphology, structure, composition and surface state of the catalyst have great influence on its performance. By adding one or more kind of metals into Pt catalyst to form a binary or multi-component alloy, the electrocatalytic activity and stability can be enhanced via heteroatom interactions. In this dissertation, binary Pt-Cu alloy nanowires were successfully prepared by chemical co-reduction method. The morphology, structure and composition of the Pt-Cualloys were characterized by the multiple detection techniques, such as TEM, XRD, EDS. The electrocatalytic properties of Pt-Cu alloys were studied by electrochemical test method. Pt33Cu67 exhibits the best electrocatalytic performance and stability with a mass current density reaching to 3.1 A?mg-1Pt, which is 3 times higher than that of commercial Pt/C. The unique structures and bifunctional interaction greatly enhance the electrocatalytic performance. This is an ideal catalyst for the oxidation of ethylene glycol.