多壁纳米管修饰电极电催化3,4-二羟基苯甲酸研究

李明齐

doi:10.61558/2993-074X.1687

电化学 >

2005 , Vol. 11 >Issue 4: 453 - 456

DOI: https://doi.org/10.61558/2993-074X.1687

研究论文

多壁纳米管修饰电极电催化3,4-二羟基苯甲酸研究

李明齐

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西华师范大学化学化工学院,西华师范大学化学化工学院,西华师范大学化学化工学院四川南充637002,四川南充637002,四川南充637002

收稿日期: 2005-11-28

修回日期: 2005-11-28

网络出版日期: 2005-11-28

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The Electrocatalystic Investigation of 3,4-Dihydroxybenzoic Acid on the Modified Multiply Wall Carbon Nanotubes

LI Ming-qi~

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(*),CAI Duo-chang,HE Xiao-ying(College of Chemistry and Chemical Engineering China West Normal University,Nanchong 637002,China

Received date: 2005-11-28

Revised date: 2005-11-28

Online published: 2005-11-28

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摘要

应用循环伏安(CV)和方波伏安(SWV)法研究3,4-二羟基苯甲酸(DHBA)在多壁碳纳米管修饰的玻碳电极上的电化学行为.实验表明:该修饰电极对DHBA有较强的电催化作用.由方波伏安法测定的氧化峰电流在DHBA浓度为4.0×10-6~1.0×10-4mol/L和2.0×10-4~8.0×10-4mol/L范围内分段呈线性变化关系;相关系数各为0.9995和0.9992,检测限1.0×10-6mol/L.

关键词： 多壁碳纳米管; 修饰电极; 3,4-二羟基苯甲酸; 电催化

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李明齐 . 多壁纳米管修饰电极电催化3,4-二羟基苯甲酸研究[J]. 电化学, 2005 , 11(4) : 453 -456 . DOI: 10.61558/2993-074X.1687

Abstract

The electrochemical behavior of 3,4-Dihydroxybenzoic acid(DHBA)on modified multiply wall carbon nanotubes electrode was investigated by cyclic voltammetry(CV) and square wave voltammetry(SWV).Results show that in 0.1 mol/L HCl solutions the modified carbon nanotube electrode has an obvious electrocatalytic effect on the oxidation and deoxidization of DHBA.The oxidation current of DHBA is linear to it's concentration in the range of 4.0×10~(-6)～1.0×10~(-4) mol/L and 2.0×10~(-4)～8.0×10~(-4)1mol/L with correlation coefficient of 0.9995 and 0.9992.The detection limit is 1.0 ×10~(-6)mol/ L.

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