| 基于纳米钯和Nafion膜修饰玻碳电极的甲醛传感器研究 |
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| 引用本文： | 周忠亮,康天放,鲁理平,周海青.基于纳米钯和Nafion膜修饰玻碳电极的甲醛传感器研究[J].北京工业大学学报,2011,37(7):1073-1078. |
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| 作者姓名： | 周忠亮 康天放 鲁理平 周海青 |
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| 作者单位： | 1.北京工业大学 环境与能源工程学院, 北京 100124 |
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| 基金项目： | 国家自然科学基金资助项目(20247002); 北京市自然科学基金资助项目(8062010,8012007) |
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| 摘 要： | 采用循环伏安法制备了钯纳米粒子-Nafion修饰玻碳电极(Pd/Nf/GCE)的甲醛电化学传感器,并采用循环伏安法(CV)和微分脉冲伏安法(DPV)研究了甲醛在该修饰电极上的电催化氧化作用.对修饰电极制备条件和实验条件进行了优化,在此基础上建立了一种测定甲醛的伏安分析方法.实验结果表明,甲醛在该传感器上的催化氧化作用显著;在0.1 mol/L NaOH溶液中,甲醛的氧化峰电流与其浓度在5.0μmol/L~5.0 mmol/L呈良好的线性关系,线性回归方程为:ip=7.69+2.22×104c,相关系数γ=0.996 7,检测限为1.0μmol/L,具有良好的重现性和回收率.
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| 关 键 词： | 钯纳米粒子 Nafion膜 甲醛 电化学传感器 |
| 收稿时间： | 2009-06-25 |
Electrochemical Sensor for the Detection of Formaldehyde Based on the Glassy Carbon Electrode Modified With Nafion Film and Nano-Pd Particles |
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| ZHOU Zhong-liang,KANG Tian-fang,LU Li-ping,ZHOU Hai-qing.Electrochemical Sensor for the Detection of Formaldehyde Based on the Glassy Carbon Electrode Modified With Nafion Film and Nano-Pd Particles[J].Journal of Beijing Polytechnic University,2011,37(7):1073-1078. |
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| Authors: | ZHOU Zhong-liang KANG Tian-fang LU Li-ping ZHOU Hai-qing |
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| Affiliation: | 1.College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China |
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| Abstract: | A novel electrochemical sensor for the detection of formaldehyde is prepared based on electrodepositing palladium nanoparticles on the Nafion film coated glassy carbon electrode(Pd/Nf/GCE) through cyclic voltammetry(CV).Electrocatalytical behaviors of the modified electrode are investigated by cyclic voltammetry and differential pulse voltammetry(DPV).Experimental conditions are optimized and a voltammetric method for determining formaldehyde is developed.Experimental results show that the electrode display... |
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| Keywords: | palladium nanoparticles Nafion film formaldehyde electrochemica1 sensors |
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