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玻碳基Pt/C/NH4NiPO4复合电极电催化氧化乙醇

Keywords: 磷酸镍铵,低温固相反应,Pt/C电极,电催化

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Abstract:

以磷酸二氢铵、氢氧化钠和四水合乙酸镍为原料,聚乙二醇-400为模板剂,应用X-射线粉末衍射法(XRD)和循环伏安法考察低温固相反应合成NH4NiPO4·H2O材料的最佳反应条件,在反应时间为4h、反应温度70℃、氢氧化钠用量为n乙酸镍:n氢氧化钠=4:1时易得到较完整晶体材料,并应用扫描电镜(SEM)、红外光谱(FT-IR)及热重差热分析(TG-DTA)对产品进行表征.实验表明将产物应用到Pt/C电催化电极中,玻碳基Pt/C/NH4NiPO4复合电极的电催化乙醇性能明显比石墨基Pt/C电极、石墨基Pt/C/NH4NiPO4复合电极优越,氧化电流较大,氧化电位降低,且具有一定的电容量,氧化电流可瞬间增加,是电催化乙醇电极潜在的特色电极.

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