| 玻碳电极的物理预处理方法 |
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| 引用本文： | 郁章玉,吴树新,郭道军.玻碳电极的物理预处理方法[J].化学世界,2001,42(1):6-9. |
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| 作者姓名： | 郁章玉 吴树新 郭道军 |
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| 作者单位： | 曲阜师范大学化学系, |
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| 基金项目： | 山东省自然科学基金资助课题 !(Q94B0 2 0 8) |
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| 摘 要： | 用循环伏安技术研究了玻碳电极在 K3 Fe( CN) 6和肾上腺素体系中的电化学性能 ,证实了用 Si C打磨玻碳电极的物理预处理方法的可行性。实验结果表明 ,在预处理玻碳电极上 ,K3 Fe( CN) 6在 0 .5mol/L KCl中的电还原反应为可逆反应 ,肾上腺素在 0 .5mol/L H2 SO4 介质中的电氧化反应为准可逆反应 ,其异相电子转移速率常数为 1 .0 7× 1 0 -2 cm/s
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| 关 键 词： | SiC 玻碳电极 预处理 物理法 肾上腺素 |
| 文章编号： | 0367-6358(2001)01-0006-04 |
| 修稿时间： | 2000年7月11日 |
The Physical Pretreating Method of Glassy Carbon Electrode |
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| YU Zhang yu,WU Shu xin,GUO Dao jun.The Physical Pretreating Method of Glassy Carbon Electrode[J].Chemical World,2001,42(1):6-9. |
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| Authors: | YU Zhang yu WU Shu xin GUO Dao jun |
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| Abstract: | The electrochemical characteristics of glassy carbon electrodetreated by polishing with siliconcarbide abrasive paper were investigated in the systems of potassium ferricyanide and adrenaline by means of cyclic voltammetry, and the feasibility of physical pretreating was verified. The reasults show that the electrochemical reduction of K3Fe(CN)6 in 0.5 mol/L KCl on the physically pretreated glassy carbon electrode is reversibile, and the electrochemical oxidation of adrenaline in 0.5 mol/L H2SO4 is quasireversibile, its heterogeneous electron transfer rate constant is 1.07×10-2cm/s. |
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| Keywords: | siliconcarbide glassy carbon electrode pretreating physical method adrenaline |
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