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

Acta Phys. -Chim. Sin. ›› 2011, Vol. 27 ›› Issue (02): 468-472.doi: 10.3866/PKU.WHXB20110210

• ELECTROCHEMISTRY AND NEW ENERGY • Previous Articles Next Articles

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

HAN Nan-Nan², WANG Hui², LI Na², ZHOU Jian-Zhang^1,2, LIN Zhong-Hua^1,2, WU Di³, WAN Guo-Jiang³

1. State Key Laboratory of Physical Chemistry of the Solid Surface, Xiamen University, Xiamen 361005, Fujian Province, P. R. China;
2. Department of Chemistry, College of Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, P. R. China;
3. School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China

Received:2010-09-26 Revised:2010-11-12 Published:2011-01-25
Contact: ZHOU Jian-Zhang, WAN Guo-Jiang E-mail:jzzhou@xmu.edu.cn, superwgj@263.net
Supported by:
The project was supported by the National Natural Science Foundation of China (20603027, 21021002, 20973134) and National High Technology Research and Development Program of China (2009AA03Z327)

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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