双金属片
循环伏安法
介电谱
联氨(抗抑郁剂)
材料科学
电化学气体传感器
电极
检出限
电化学
纳米颗粒
分析化学(期刊)
化学工程
无机化学
纳米技术
化学
金属
冶金
色谱法
工程类
物理化学
作者
A. Lavanya,Kusum Kumari,K.R.S. Prasad,Pradeep Kumar Brahman
标识
DOI:10.1080/03067319.2020.1726333
摘要
Development of electrochemical sensors could offer a powerful solution for environmental monitoring and may overcome many limitations existing in current methods of analysis. In this study, a simple, facile and green electrodeposition method was employed for the design of a high-performance electrochemical sensor based on ruthenium and cobalt bimetallic nanoparticles modified glassy carbon electrode (Ru-Co/GCE) for hydrazine detection. The electrochemical properties of the sensor were explored using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The morphology and elemental composition of the proposed electrode were characterised by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The proposed sensor exhibited excellent selectivity, stability and reproducible electrocatalytic response towards hydrazine oxidation. Excellent linearity over a wide concentration range of 0.0025–9.55 mM with very low limit of detection (LOD) of 0.00025 mM. Ru-Co/GCE sensor was successfully applied for the detection of hydrazine in different water samples.
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