电沉积制备ZnO纳米棒修饰电极上氧化还原蛋白的电化学行为

doi:10.3866/PKU.WHXB20110210

Abstract

Abstract:

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.

Key words: ZnO nanorod, Electrodeposition, Redox protein, Cytochrome c

MSC2000:

O646

HAN Nan-Nan, WANG Hui, LI Na, ZHOU Jian-Zhang, LIN Zhong-Hua, WU Di, WAN Guo-Jiang. Electrochemical Behavior of Redox Proteins on ZnO Nanorod-Modified Electrodes Prepared by Electrodeposition[J].Acta Phys. -Chim. Sin., 2011, 27(02): 468-472.

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Electrochemical Behavior of Redox Proteins on ZnO Nanorod-Modified Electrodes Prepared by Electrodeposition

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