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Development of nonenzymatic hydrogen peroxide sensor based on catalytic properties of copper nanoparticles/Rutin/MWCNTs/IL/Chit

Paper ID Volume ID Publish Year Pages File Format Full-Text
49366 46740 2015 5 PDF Available
Title
Development of nonenzymatic hydrogen peroxide sensor based on catalytic properties of copper nanoparticles/Rutin/MWCNTs/IL/Chit
Abstract

•A novel H2O2 sensor on the base of catalytic properties of CuNPs was developed.•Copper nanoparticles-catalyzed reduction of hydrogen peroxide was studied.•The electrocatalytic reduction of H2O2 is a diffusion-controlled process.•The sensor showed excellent detection limit towards H2O2 determination.

A new electrochemical sensor based on copper nanoparticles for detection of hydrogen peroxide has been developed. Copper nanoparticles/Rutin/Multiwall Carbon Nanotubes/Ionic liquid/Chitosan modified glassy carbon electrode (CuNPs/Rutin/MWCNTs/IL/Chit/GCE) prepared by consecutive coating of MWCNTs/IL/Chit nanocomposite and rutin on the GCE, followed by the electrodeposition of copper. Surface physical characteristics of modified electrode were studied by scanning electron microscopy (SEM). The electrochemical performance of the sensor for detection of H2O2 was investigated by cyclic voltammetry and chronoamperometry techniques. The modified electrode exhibits an enhanced electrocatalytic property, low working potential, high sensitivity, excellent selectivity, good stability, and fast amperometric sensing towards reduction of hydrogen peroxide. The response to H2O2 is linear in the range between 0.35 μM to 2500 μM, and the detection limit is 0.11 μM.

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Keywords
Electrochemical sensor; Hydrogen peroxide; Chronoamperometry
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Development of nonenzymatic hydrogen peroxide sensor based on catalytic properties of copper nanoparticles/Rutin/MWCNTs/IL/Chit
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 69, 5 September 2015, Pages 133–137
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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