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Tungsten trioxide nanorods as supports for platinum in methanol oxidation

机译:三氧化钨纳米棒作为甲醇氧化中铂的载体

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Tungsten trioxide (WO_3) nanorods have been prepared by a simple pyrolysis of surfactant encapsulated tungsten oxide clusters. These nanorods are characterized by XRD, Raman, electron microscopic techniques and cyclic voltammetry. Platinum nanoparticles have been supported on these WO_3 nanorods. The electrocatalytic activity and stability of platinum loaded WO_3 nanorods towards methanol oxidation have been studied and compared with that of platinum supported on bulk WO_3 and commercial 20% Pt-Ru/C (J.M.) using electrochemical measurements. The results demonstrated that alteration of the morphology of the WO_3 from bulk to 1D nanorods have resulted in comparable methanol oxidation activity as that of the commercial 20% Pt-Ru/C catalyst.
机译:三氧化钨(WO_3)纳米棒是通过表面活性剂包裹的氧化钨簇的简单热解制备的。这些纳米棒通过XRD,拉曼,电子显微镜技术和循环伏安法进行表征。这些WO_3纳米棒上已经负载了铂纳米颗粒。已经研究了负载铂的WO_3纳米棒对甲醇氧化的电催化活性和稳定性,并使用电化学测量结果将其与负载在本体WO_3和市售20%Pt-Ru / C(J.M.)上的铂进行了比较。结果表明,WO_3的形态从本体改变为一维纳米棒已导致了与商业20%Pt-Ru / C催化剂相当的甲醇氧化活性。

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