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电沉积纳米金修饰钛电极对甲醛的电催化氧化
引用本文:于文强,易清风.电沉积纳米金修饰钛电极对甲醛的电催化氧化[J].传感技术学报,2009,22(11).
作者姓名:于文强  易清风
作者单位:湖南科技大学化学化工学院,湖南,湘潭,411201 
基金项目:国家自然科学基金资助,湖南省教育厅重点项目资助,湖南科技大学研究生创新基金项目资助 
摘    要:制备了电沉积纳米金修饰的钛电极(Au/Ti),扫描电镜观察发现钛基体表面纳米金颗粒大小均匀、粒径大约为150~170 nm.运用循环伏安和电位阶跃技术研究了Au/Ti对甲醛的电氧化,Au/Ti电极对甲醛氧化具有良好的电催化活性.0.1 mol/LNaOH溶液中,甲醛浓度0~60 mmol/L范围内,甲醛氧化峰电流与甲醛浓度呈良好的线性关系,检测下限达4.7312×10-7mol/L.

关 键 词:电催化氧化  纳米金  化学传感器  甲醛

Electrocatalytic Oxidation of Formaldehyde on Titanium Electrode with Gold Nanoparticles by Electrochemical Deposition
YU Wenqiang,YI Qingfeng School of Chemistry , Chemical Engineering,Hunan University of Science , Technology,Xiangtan Hunan,China.Electrocatalytic Oxidation of Formaldehyde on Titanium Electrode with Gold Nanoparticles by Electrochemical Deposition[J].Journal of Transduction Technology,2009,22(11).
Authors:YU Wenqiang  YI Qingfeng School of Chemistry  Chemical Engineering  Hunan University of Science  Technology  Xiangtan Hunan  China
Affiliation:YU Wenqiang,YI Qingfeng School of Chemistry , Chemical Engineering,Hunan University of Science , Technology,Xiangtan Hunan411201,China
Abstract:Using electrochemical deposition method,gold nanoparticle modified titanium electrode(Au/Ti)was prepared,the electrochemical behaviors of formaldehyde on which were studied by cyclic voltametry and chronoamperometry.The scanning of electrode microscope image showed that the gold nanoparticles with a diameter of about 150~170 nm dispersed on the titanium electrode.The Au/Ti electrode presented good electrocatalytic activity to formaldehyde oxidation.The oxidation peak current is linearly proportional to form...
Keywords:electrocatalytic oxidation  gold nanoparticle  electrochemical sensor  formaldehyde  
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