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Microchimica Acta

, Volume 169, Issue 3–4, pp 361–365 | Cite as

Electrodeposition of silver nanoparticles on a zinc oxide film: improvement of amperometric sensing sensitivity and stability for hydrogen peroxide determination

  • Qi Wang
  • Jianbin ZhengEmail author
Original Paper

Abstract

A strategy to fabricate a hydrogen peroxide (HP) sensor is developed by electrodepositing silver nanoparticles (Ag NPs) on a modified glassy carbon electrode (GCE) with a zinc oxide (ZnO) film. The Ag NPs/ZnO/GCE has been characterized by scanning electron microscopy, cyclic voltammetry, and chronoamperometry. It has been found that the Ag NPs synthesized in the presence of ZnO film provide an electrode with enhanced sensitivity and excellent stability. The sensitivity to HP is enhanced 3-fold by using Ag NPs/ZnO/GCE compared to Ag NPs/GCE. The HP sensor exhibits good linear behavior in the concentration range 2 µM to 5.5 mM for the quantitative analysis of HP with a detection limit of 0.42 µM (S/N = 3).

Keywords

Modified electrode Non-enzymatic sensors Silver nanoparticles Zinc oxide Hydrogen peroxide 

Notes

Acknowledgments

This work is supported by the National Natural Science Foundation of China (No. 20875076).

Supplementary material

604_2010_356_MOESM1_ESM.doc (30 kb)
ESM 1 (DOC 30 kb)

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  1. 1.Institute of Analytical Science/Shaanxi Provincial Key Laboratory of Electroanalytical ChemistryNorthwest UniversityXi´anPeople’s Republic of China
  2. 2.School of ScienceXidian UniversityXi´anPeople’s Republic of China

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