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| 葡萄糖在纳米金修饰金电极上电化学行为研究 | |
| 引用本文： | 汪海燕,王晔,宋琼,金葆康.葡萄糖在纳米金修饰金电极上电化学行为研究[J].分析科学学报,2007,23(2):185-188. |
| 作者姓名： | 汪海燕 王晔 宋琼 金葆康 |
| 作者单位： | 1. 安徽大学化学化工学院,合肥,230039;巢湖学院化学系,安徽巢湖,230038 2. 安徽大学化学化工学院,合肥,230039 3. 安徽省合肥市四十二中,合肥,230041 |
| 基金项目： | 安徽省教育厅自然科学基金 , 人事部留学回国人员科技活动择优基金 |
| 摘 要： | 利用电还原氯金酸制备了纳米金(Nano-gold,NG)修饰Au电极。该电极对葡萄糖有催化作用,可能是由于纳米金降低了OH-表面吸附能,增加了OH-在电极表面的吸附量。通过循环伏安法研究了扫描速度、温度、本体浓度和溶液pH值对葡萄糖氧化的影响。 |
| 关 键 词： | 纳米金 循环伏安法 葡萄糖氧化 |
| 文章编号： | 1006-6144(2007)02-0185-04 |
| 修稿时间： | 2006-04-04 |
Electrocatalytic Oxidation of Glucose at Gold-nanoparticles Modified Gold Electrodes in Alkaline Medium |
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| WANG Hai-yan,WANG Ye,SONG Qiong,JIN Bao-kang.Electrocatalytic Oxidation of Glucose at Gold-nanoparticles Modified Gold Electrodes in Alkaline Medium[J].Journal of Analytical Science,2007,23(2):185-188. | |
| Authors: | WANG Hai-yan WANG Ye SONG Qiong JIN Bao-kang |
| Institution: | 1. School of Chemistry and Chemical Engineering ,Anhui University, Hefei 230039; 2. Department of Chemistry, Chaohu College, Chaohu,Anhui 230038; 3. No. 42 Middle School in Hefei, Hefei 230041 |
| Abstract: | The electrocatalytic oxidation of glucose was performed in alkaline solutions at gold nanoparticles modified gold electrodes(NG/Au) and high catalytic activity of modified electrode was clearly demonstrated.The current densities were markedly increased and the oxidation of glucose occured at lower potentials obtained at NG/Au than that obtained at bare gold electrode,which maybe resulted from that the gold nanoparticles can selectively enhance oxidation of glucose and decrease the overvoltage for the formation of adsorbed OH-.The influences of scan rates(2~1 000 mV\5s-1),concentrations of glucose and hydroxide,temperature and the pH value on the oxidation of glucose have also been studied. |
| Keywords: | Glucose Gold nanoparticles Electro catalytic oxidation |
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