Nitrite Oxidation with Copper-Cobalt Nanoparticles on Carbon Nanotubes Doped Conducting Polymer PEDOT Composite

被引：28

作者：

Wang, Junjie ^{[1
]}

Xu, Guiyun ^{[1
]}

Wang, Wei ^{[1
]}

Xu, Shenghao ^{[1
]}

Luo, Xiliang ^{[1
]}

机构：

[1] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Minist Educ, Key Lab Sensor Anal Tumor Marker, Qingdao 266042, Peoples R China

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2015年 / 10卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Cu-Co bimetal nanoparticles; electrocatalysis; nanotubes; oxidation; poly(3; 4-ethylenedioxythiophene); REDUCED GRAPHENE OXIDE; ELECTROCATALYTIC OXIDATION; MODIFIED ELECTRODE; CATALYTIC-ACTIVITY; GLUCOSE-OXIDATION; IONIC LIQUID; SENSOR; FILMS; REDUCTION; ELECTROOXIDATION;

D O I：

10.1002/asia.201500579

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Copper-cobalt bimetal nanoparticles (Cu-Co) have been electrochemically prepared on glassy carbon electrodes (GCEs), which were electrodeposited with conducting polymer nanocomposites of poly(3,4-ethylenedioxythiophene) (PEDOT) doped with carbon nanotubes (CNTs). Owing to their good conductivity, high mechanical strength, and large surface area, the PEDOT/CNTs composites offered excellent substrates for the electrochemical deposition of Cu-Co nanoparticles. As a result of their nanostructure and the synergic effect between Cu and Co, the Cu-Co/PEDOT/CNTs composites exhibited significantly enhanced catalytic activity towards the electrochemical oxidation of nitrite. Under optimized conditions, the nanocomposite-modified electrodes had a fast response time within 2s and a linear range from 0.5 to 430m for the detection of nitrite, with a detection limit of 60nm. Moreover, the Cu-Co/PEDOT/CNTs composites were highly stable, and the prepared nitrite sensors could retain more than 96% of their initial response after 30days.

引用

页码：1892 / 1897

页数：6

共 49 条

[21] Morphology-controllable gold nanostructures on phosphorus doped diamond-like carbon surfaces and their electrocatalysis for glucose oxidation [J].