本文選題：脫合金　切入點：納米多孔金　出處：《功能材料》2017年04期 　論文類型：期刊論文

【摘要】：通過脫合金方法對金銀合金薄膜進(jìn)行選擇性腐蝕得到了具有三維雙連通結(jié)構(gòu)的納米多孔金(NPG)。將NPG作為三電極測試體系中的工作電極,利用循環(huán)伏安法表征了其在堿性條件下對10 mmol/L的水合肼溶液的電催化性能。結(jié)果表明,納米多孔金對水合肼的電催化氧化不僅峰電流強度比純金電極高一個數(shù)量級以上,而且起峰電位很低,表現(xiàn)出很高的電催化氧化性能,這種優(yōu)越的電催化性能和它的高比表面積以及多孔結(jié)構(gòu)緊密相關(guān)。
[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.
【作者單位】： 上海理工大學(xué)材料科學(xué)與工程學(xué)院;上海理工大學(xué)機械工程學(xué)院;天津理工大學(xué)新能源材料與低碳技術(shù)研究院;
【基金】：上海市科委地方高校能力建設(shè)計劃資助項目(16060502400)
【分類號】：O643.36;TM911.4

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