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

被引：0
|
作者：
Su-Su Huang
Li Liu
Li-Ping Mei
Jia-Ying Zhou
Fei-Ying Guo
Ai-Jun Wang
Jiu-Ju Feng
机构：
[1] Zhejiang Normal University,College of Chemistry and Life Science, College of Geography and Environmental Science
[2] Jinhua Agricultural Products Quality Comprehensive Supervision and Inspection Center,undefined
来源：
Microchimica Acta | 2016年 / 183卷
关键词：
Metformin; Bimetallic structures; Cyclic voltammetry; High-resolution TEM; Annular dark-field scanning TEM;
D O I：
暂无
中图分类号：
学科分类号：
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 μA mM−1), a wide linear range (0.01 to 4.0 mM), a low detection limit (0.2 μM, S/N = 3), and superior selectivity as compared to other sensors.
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页码：791 / 797
页数：6
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