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将磷钼酸(PMo12)修饰到电化学聚合制得的聚3,4-乙烯二氧噻吩(PEDOT)(PEDOT/GC)膜表面(PMo12/PEDOT/GC),随后电沉积Pt得Pt/PMo12/PEDOT/GC电极.研究了PMo12和PEDOT对电极氧化甲醇性能的影响.结果表明,PMo12改变了电极上负载Pt的形态和结构,导致Pt纳米结构边缘产生尖锐的刺状结构.Pt/PMo12/PEDOT/GC和Pt/PEDOT/GC电极有较好的甲醇氧化电催化活性,而前者尤佳.PEDOT不仅提高甲醇氧化的电流,还使甲醇的起始氧化电位负移.进一步修饰PMo12后,可明显增大甲醇氧化的电流.
(PMo12 / PEDOT / GC) modified by PMO12 was electrochemically polymerized, then Pt was Pt / PMo12 / PEDOT / GC electrode.The effects of PMo12 and PEDOT on the methanol oxidation performance of the electrode were investigated.The results showed that the morphology and structure of Pt loaded on the electrode were changed by PMo12, resulting in a sharp thorn-like structure at the edge of Pt nanostructure.Pt / PMo12 / PEDOT / GC and Pt / PEDOT / GC electrodes have better methanol oxidation electrocatalytic activity, while the former is especially preferred.PEDOT not only increases the methanol oxidation current, but also negatively shifts the initial oxidation potential of methanol. After further modification of PMo12, Significant increase in methanol oxidation current.