为了获得电化学性能良好的修饰电极,以多孔Ti为基体,通过水热法制备了一种以ZnO/CuO为复合物修饰的多孔Ti/ZnO/CuO电极,并利用扫描电子显微镜(SEM)、X射线衍射(XRD)、X射线能谱分析(EDS)分别对电极的形貌和元素分布进行了定性表征。利用电化学工作站分别对多孔Ti/ZnO、多孔Ti/CuO和多孔Ti/ZnO/CuO修饰电极进行了循环伏安测试(CV)和线性扫描伏安测试(LSV)。结果表明,当CuCl2·2H2O为0.1mol/L、醋酸锌为0.01mol/L,乙酸锌与六次甲基四胺均为0.1mol/L时,ZnO纳米棒、CuO薄膜能够在孔径为1μm的多孔Ti表面均匀分布。同时,与单独的多孔Ti/ZnO、多孔Ti/CuO修饰电极相比,多孔Ti/ZnO/CuO修饰电极在有色聚酯醇解液中具有较强的电催化活性,且电催化性能明显。
In order to obtain modified electrode with good electrochemical performance,porous Ti/ZnO/CuO electrode modified with ZnO/CuO as a composite was prepared by hydrothermal method with porous Ti as the matrix.The scanning electron microscope (SEM),X-ray diffraction (XRD) and X-ray energy spectrum analysis (EDS) were used to qualitatively characterize the morphology and element distribution of the electrode.Cyclic voltammetry (CV) and linear sweep voltammetry (LSV) were carried out on porous Ti/ZnO,porous Ti/CuO,and porous Ti/ZnO/CuO modified electrodes using an electrochemical workstation.The results showed that:when CuCl2·2H2O was 0.1mol/L,zinc acetate was 0.01mol/L,zinc acetate and hexamethylene tetramine were both 0.1mol/L,ZnO nanorods and CuO films can be evenly distributed on the porous Ti surface with the pore size of 1μm.At the same time,compared with single porous Ti/ZnO and porous Ti/CuO modified electrode,the porous Ti/ZnO/CuO modified electrode had stronger electrocatalytic activity in the colored polyester alcoholysis solution,and the electrocatalytic performance was obvious.
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基金资助
国家重点研发计划项目(2016YFB0302901-3)
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