Original Paper

Microchimica Acta

, Volume 180, Issue 3, pp 261-268

Nonenzymatic sensor for hydrogen peroxide based on the electrodeposition of silver nanoparticles on poly(ionic liquid)-stabilized graphene sheets

  • Qi WangAffiliated withSchool of Science, Xidian UniversityInstitute of Analytical Science/Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Northwest University Email author 
  • , Yanbin YunAffiliated withCollege of Environmental Science & Engineering, Beijing Forestry University

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Abstract

We have developed a nonenzymatic sensor for hydrogen peroxide (HP) that is based on a new kind of nanocomposite consisting of silver nanoparticles (AgNPs) electrodeposited on a basic film of a poly(ionic liquid) containing graphene. The nanocomposite was characterized by scanning electron microscopy, energy dispersive X-ray studies, cyclic voltammetry, and chronoamperometry. The AgNPs on the basic composite film provide the electrode with enhanced sensitivity in that the signal obtained for HP is 10-fold improved in the best case. The sensor exhibits good linear response in the 0.1 μM to 2.2 mM HP concentration range, and the detection limit is 0.05 μM (at S/N = 3).

http://static-content.springer.com/image/art%3A10.1007%2Fs00604-012-0921-3/MediaObjects/604_2012_921_Figa_HTML.gif

Keywords

Graphene Poly(ionic liquid) Silver nanoparticle Nonenzymatic Hydrogen peroxide