纳米多孔金薄膜的电催化氧化水合肼性能研究

发布时间：2018-03-08 20:51

本文选题：脱合金　切入点：纳米多孔金　出处：《功能材料》2017年04期 　论文类型：期刊论文

【摘要】：通过脱合金方法对金银合金薄膜进行选择性腐蚀得到了具有三维双连通结构的纳米多孔金(NPG)。将NPG作为三电极测试体系中的工作电极,利用循环伏安法表征了其在碱性条件下对10 mmol/L的水合肼溶液的电催化性能。结果表明,纳米多孔金对水合肼的电催化氧化不仅峰电流强度比纯金电极高一个数量级以上,而且起峰电位很低,表现出很高的电催化氧化性能,这种优越的电催化性能和它的高比表面积以及多孔结构紧密相关。
[Abstract]:Through the selective etching of gold and silver alloy films by dealloying method, the porous gold nanoparticles with three dimensional double connected structure were obtained. NPG was used as the working electrode in the three-electrode test system. Cyclic voltammetry was used to characterize the electrocatalytic properties of hydrazine hydrate solution for 10 mmol/L in alkaline condition. The results showed that the electrochemical oxidation of hydrazine hydrate by nano-porous gold was more than one order of magnitude higher than that of pure gold electrode. Moreover, the peak initiation potential is very low, showing a high performance of electrocatalytic oxidation, which is closely related to its high specific surface area and porous structure.
【作者单位】：上海理工大学材料科学与工程学院;上海理工大学机械工程学院;天津理工大学新能源材料与低碳技术研究院;
【基金】：上海市科委地方高校能力建设计划资助项目(16060502400)
【分类号】：O643.36;TM911.4

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