本文選題：脫合金 + 電催化劑　； 參考：《功能材料》2017年04期

【摘要】：采用單輥旋淬方法制備了成分和結(jié)構(gòu)均勻的鉑鈦銅合金條帶,通過脫合金方法進行選擇性腐蝕得到了具有三維雙連續(xù)孔洞結(jié)構(gòu)的納米多孔鉑鈦銅(np-PtTiCu)催化劑。將np-PtTiCu作為三電極測試體系中的工作電極,利用循環(huán)伏安法表征了其對甲酸、乙醇和甲醇的電催化氧化性能以及抗CO中毒能力,利用恒電位極化方法表征了其電催化穩(wěn)定性。結(jié)果表明,np-PtTiCu催化劑比Pt/C催化劑具有更高的電催化活性,更好的抗CO中毒能力和穩(wěn)定性,這些性能的改善與電極材料的多孔結(jié)構(gòu)有關(guān)。
[Abstract]:Pt-Ti-Cu alloy ribbons with uniform composition and structure were prepared by single roll spinning quenching method. The nano-porous Pt-Ti Cu / Cu catalyst with three dimensional double continuous pore structure was prepared by selective corrosion by dealloying method. Using np-PtTiCu as the working electrode in the three-electrode measurement system, the electrocatalytic oxidation of formic acid, ethanol and methanol and its ability to resist CO poisoning were characterized by cyclic voltammetry. The electrocatalytic stability of np-PtTiCu was characterized by potentiostatic polarization method. The results show that np-PtTiCu catalyst has higher electrocatalytic activity, better resistance to CO poisoning and better stability than that of Pt / C catalyst. The improvement of these properties is related to the porous structure of electrode materials.
【作者單位】： 上海理工大學材料科學與工程學院;上海理工大學機械工程學院;天津理工大學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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本文編號：2047845