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Photoelectrochemical Properties of Nanostructured Copper Oxides Formed Sonoelectrochemically

机译:声电化学形成的纳米结构氧化铜的光电化学性质

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In this work nanostrutured copper oxides (CuxO) were prepared by ultrasound-assisted anodization of copper foils. These CuxO nanostructures were characterized morphologically and structurally by SEM and XRD, respectively. The bandgap value was determined by diffuse reflectance measurements. The electrochemical characterization included Mott Schottky plots and electrochemical techniques. From these measurements it was possible to establish that the formed phase corresponded to p-Cu2O. The best results in the cathodic photocurrent response for the system Cu|p-Cu2O|10 mM KI, 1 mM KI3 in 50 mM Na2B4O7 (pH 9.2) were obtained with oxides prepared at 75°C, 100V in ethylene glycol contained 5% wt H2O and 0.5 wt% NH4Cl.
机译:在这项工作中,通过铜箔的超声辅助阳极氧化制备了纳米结构的氧化铜(CuxO)。这些CuxO纳米结构分别通过SEM和XRD进行了形态和结构表征。带隙值是通过漫反射测量确定的。电化学表征包括Mott Schottky图和电化学技术。从这些测量可以确定形成的相对应于p-Cu 2O。使用在75°C,100V乙二醇中含有5%wt的氧化物制备的氧化物,在50 mM Na2B4O7(pH 9.2)中的Cu | p-Cu2O | 10 mM KI,1 mM KI3体系的阴极光电流响应中获得最佳结果H2O和0.5 wt%NH4Cl。

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