Electrochemical sensor for nitrite using a glassy carbon electrode modified with gold-copper nanochain networks

被引：77

作者：

Huang, Su-Su ^{[1
]}

Liu, Li ^{[2
]}

Mei, Li-Ping ^{[1
]}

Zhou, Jia-Ying ^{[1
]}

Guo, Fei-Ying ^{[1
]}

Wang, Ai-Jun ^{[1
]}

Feng, Jiu-Ju ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Coll Geog & Environm Sci, Coll Chem & Life Sci, Jinhua 321004, Peoples R China

[2] Jinhua Agr Prod Qual Comprehens Supervis & Inspec, Yongkang St 209, Jinhua 321017, Peoples R China

来源：

MICROCHIMICA ACTA | 2016年 / 183卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Metformin; Bimetallic structures; Cyclic voltammetry; High-resolution TEM; Annular dark-field scanning TEM; GRAPHENE OXIDE NANOSHEETS; OXYGEN REDUCTION REACTION; AUCU ALLOY NANOPARTICLES; SENSITIVE DETERMINATION; FACILE SYNTHESIS; ELECTROCATALYTIC REDUCTION; AMPEROMETRIC SENSOR; IONIC LIQUID; NANOTUBES; H2O2;

D O I：

10.1007/s00604-015-1717-z

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Bimetallic gold-copper nanochain networks (AuCu NCNs) were prepared by a single-step wet-chemical approach using metformin as a growth-directing agent. The formation mechanism was investigated in detail, and the AuCu NCNs were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The nanocrystals were deposited on glassy carbon electrode and this resulted in a highly sensitive sensor for nitrite. Features include a low working potential (best at 0.684 V vs. SCE), fair sensitivity (17.55 mu A mM(-1)), a wide linear range (0.01 to 4.0 mM), a low detection limit (0.2 mu M, S/N = 3), and superior selectivity as compared to other sensors.

引用

页码：791 / 797

页数：7

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