Characterization and electrocatalytic behaviour of glassy carbon electrode modified with nickel nanoparticles towards amitrole detection

被引：39
|
作者：
Maringa, Audacity [1 ]
Mugadza, Tawanda [2 ]
Antunes, Edith [1 ]
Nyokong, Tebello [1 ]
机构：
[1] Rhodes Univ, Dept Chem, ZA-6140 Grahamstown, South Africa
[2] Midlands State Univ, Dept Chem Technol, Gweru, Zimbabwe
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2013年 / 700卷
基金：
新加坡国家研究基金会;
关键词：
Nickel nanoparticles; Nickel phthalocyanine; Electrocatalysis; Amitrole; MAGNETIC NANOPARTICLES; POLYOL PROCESS; ELECTROOXIDATION; OXIDATION; NANOTUBE; SIZE; ELECTROCHEMISTRY; REDUCTION; FILM;
D O I：
10.1016/j.jelechem.2013.04.022
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We report on the synthesis of Ni nanoparticles (NiNPs) and their application in electrocatalysis in comparison with nickel phthalocyanine (NiPc). UV-vis spectroscopy, powder X-ray diffraction, transmission electron microscopy and electron paramagnetic resonance were used in the characterization of NiNPs. Cyclic voltammetry and electrochemical impedance spectroscopy were used in electrocatalytic studies of amitrole on the glassy carbon electrode modified with NiNPs. The apparent and catalytic rate constants for amitrole on the NiNP-GCE were found to be 2.58 x 10(-5) cm s(-1) and 1.11 x 10(3) M-1 s(-1), respectively. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：86 / 92
页数：7
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