An amperometric sensor for hydrazine based on nano-copper oxide modified electrode

被引：38
|
作者：
Yin, Zhaojing [1 ]
Liu, Liping [1 ]
Yang, Zhousheng [1 ]
机构：
[1] Anhui Normal Univ, Coll Chem & Mat Sci, Anhui Key Lab Chemobiosening, Wuhu 241000, Peoples R China
来源：
JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2011年 / 15卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Amperometric sensor; Nano-copper oxide; Hydrazine; Electrodeposition; GLASSY-CARBON ELECTRODE; ELECTROCATALYTIC OXIDATION; CHROMATOGRAPHIC DETERMINATION; SURFACES;
D O I：
10.1007/s10008-010-1161-2
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A sensitive hydrazine sensor has been fabricated using copper oxide nanoparticles modified glassy carbon electrode (GCE) to form nano-copper oxide/GCE. The nano-copper oxide was electrodeposited on the surface of GCE in CuCl2 solution at -0.4 V and was characterized by Scanning electron microscopy and X-ray diffraction. The prepared modified electrode showed a good electrocatalytic activity toward oxidation of hydrazine. The electrochemical behavior of hydrazine on nano-copper oxide/GCE was explored. The oxidative current increased linearly with improving concentration of hydrazine on nano-copper oxide/GCE from 0.1 to 600 mu M and detection limit for hydrazine was evaluated to be 0.03 mu M at a signal-to-noise ratio of 3. The oxidation mechanism of hydrazine on the nano-copper oxide/GCE was also discussed. The fabricated sensor could be used to determine hydrazine in real water.
引用
收藏
页码：821 / 827
页数：7
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