| 细胞色素C551在ITO电极上的直接电化学 |
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| 引用本文： | 严捷,李经建,张波,蔡生民. 细胞色素C551在ITO电极上的直接电化学[J]. 物理化学学报, 2001, 17(12): 1126-1128. DOI: 10.3866/PKU.WHXB20011214 |
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| 作者姓名： | 严捷 李经建 张波 蔡生民 |
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| 作者单位： | College of Chemistry and Molecular Engineering, Peking University,Beijing 100871 |
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| 摘 要： | 在不加任何电子转移促进剂的条件下，用循环伏安法(CV)和微分脉冲伏安法(DPV)观察到细胞色素C551在ITO导电玻璃上的直接电化学行为.结果显示电极反应过程为准可逆性质，计算得到细胞色素C551的扩散系数、式电位和异相电子转移标准速率常数，并对其在ITO导电玻璃电极上的电子转移机制进行了初步分析.
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| 关 键 词： | 细胞色素C551 ITO电极 直接电化学 |
| 收稿时间： | 2001-07-30 |
| 修稿时间： | 2001-07-30 |
Direct Electrochemistry of Cytochrome C551 from Pseudomonas Aeruginosa at ITO Electrodes |
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| Yan Jie,Li Jing-Jian,Zhang Bo,Cai Sheng-Min. Direct Electrochemistry of Cytochrome C551 from Pseudomonas Aeruginosa at ITO Electrodes[J]. Acta Physico-Chimica Sinica, 2001, 17(12): 1126-1128. DOI: 10.3866/PKU.WHXB20011214 |
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| Authors: | Yan Jie Li Jing-Jian Zhang Bo Cai Sheng-Min |
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| Affiliation: | College of Chemistry and Molecular Engineering, Peking University,Beijing 100871 |
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| Abstract: | The direct electrochemistry of cytochrome C551 from pseudomonas aeruginosa has been investigated at indium-doped tin oxide(ITO) optically transparent electrodes without any surface promoters or mediators. The cyclic voltammograms show a quasi-reversible electrode reaction. Plots of peak reduction current against square root of scan rate are linear over the range 5 mV•s－1 to 100 mV•s－1. The diffusion coefficient of C551 is calculated from the slope of the line. The rate constant for heterogeneous electron transfer is determined by measuring cyclic voltammetry peak separation as a function of scan rate. |
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| Keywords: | Cytochrome C551 ITO electrode Direct electrochemistry |
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