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中文摘要：
采用恒电位阴极还原法在金电极表面一步修饰ZnO纳米棒,制备成ZnO纳米棒修饰电极.扫描电子显微镜（SEM）和X射线衍射（XRD）结果显示制得的ZnO为直径约100nm的六棱柱状纤锌矿晶体纳米棒.使用ZnO纳米棒修饰的金电极研究细胞色素c的直接电化学行为,结果表明：ZnO纳米棒修饰的金电极能有效探测到细胞色素c的铁卟啉辅基在不同价态下的电化学行为;细胞色素c吸附后,ZnO纳米棒修饰的金电极对过氧化氢的电流响应呈现良好的线性关系.
英文摘要：
We successfully prepared ZnO nanorod-modified Au（ZnO nanorod/Au） electrodes using one-step cathodic electrodeposition.Scanning electron microscopy（SEM） and X-ray diffraction（XRD） were used to characterize the morphology and crystal phase of the ZnO nanorods.The data showed that the ZnO nanorods were wurtzite type crystals with a hexagonal rod shape and a diameter of about 100 nm and that the ZnO nanorods were arranged well on the surface of electrodes.These ZnO nanorod-modified electrodes were able to detect direct electron transfer from cytochrome c（cyt c）.Cyclic voltammograms showed that the direct electron transfer of cyt c with heme iron in different valence states was easily achieved by the ZnO nanorod/Au electrode.Data of amperometric responses demonstrated that a linear amperometric response to hydrogen peroxide was observed on the ZnO nanorod/Au electrodes after adsorbing cyt c.
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