Preparation and characterization of AuNPs/CNTs-ErGO electrochemical sensors for highly sensitive detection of hydrazine

被引：78

作者：

Zhao, Zhenting ^{[1
,2
]}

Sun, Yongjiao ^{[1
,2
]}

Li, Pengwei ^{[1
,2
]}

Zhang, Wendong ^{[1
,2
]}

Lian, Kun ^{[1
,2
]}

Hu, Jie ^{[1
,2
]}

Chen, Yong ^{[3
]}

机构：

[1] Taiyuan Univ Technol, Minist Educ, Key Lab Adv Transducers & Intelligent Control Sys, Micro & Nano Syst Res Ctr, Taiyuan 030024, Shanxi, Peoples R China

[2] Taiyuan Univ Technol, Coll Informat Engn, Taiyuan 030024, Shanxi, Peoples R China

[3] Ecole Normale Super, CNRS, ENS, UPMC,UMR 8640, F-75005 Paris, France

来源：

TALANTA | 2016年 / 158卷

基金：

山西省青年科学基金; 中国国家自然科学基金;

关键词：

Reduced graphene oxide; Carbon nanotubes; Au nanoparticles; Hydrazine sensor; REDUCED GRAPHENE OXIDE; GLASSY-CARBON ELECTRODE; ONE-POT SYNTHESIS; MODIFIED AU ELECTRODE; ELECTROCATALYTIC OXIDATION; CHEMICAL SENSOR; GOLD NANOPARTICLES; HYBRID MATERIAL; NANOTUBE; SUPERCAPACITORS;

D O I：

10.1016/j.talanta.2016.05.065

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A highly sensitive electrochemical sensor of hydrazine has been fabricated by Au nanoparticles (AuNPs) coating of carbon nanotubes-electrochemical reduced graphene oxide composite film (CNTs-ErGO) on glassy carbon electrode (GCE). Cyclic voltammetry and potential amperometry have been used to investigate the electrochemical properties of the fabricated sensors for hydrazine detection. The performances of the sensors were optimized by varying the CNT5 to ErGO ratio and the quantity of Au nanoparticles. The results show that under optimal conditions, a sensitivity of 9.73 mu A mu M-1 cm(-2), a short response time of 3 s, and a low detection limit of 0.065 mu M could be achieved with a linear concentration response range from 0.3 M to 319 mu M. The enhanced electrochemical performances could be attributed to the synergistic effect between AuNPs and CNTs-ErGO film and the outstanding catalytic effect of the Au nanoparticles. Finally, the sensor was successfully used to analyse the tap water, showing high potential for practical applications. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：283 / 291

页数：9

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