Electrochemical hydrogen peroxide sensor based on carbon supported Cu@Pt core-shell nanoparticles

Mater Sci Eng C Mater Biol Appl. 2017 Sep 1:78:185-190. doi: 10.1016/j.msec.2017.04.072. Epub 2017 Apr 14.

Abstract

The Cu@Pt/C nanocomposites have been synthesized via two-step reduction method. Electrochemical observations showed that the Cu@Pt/C had better electrocatalytic activity for the reduction of hydrogen peroxide than Pt/C, with a wide linear range between 0.50μM and 32.56mM, a high sensitivity of 351.3μAmM-1cm-2, and a low detection limit of 0.15μM (signal/noise=3). Furthermore, the sensor based on Cu@Pt/C has potential applications due to its excellent long-time stability, good reproducibility and acceptable selectivity.

Keywords: Cu@Pt/C nanocomposites; Electrocatalysis; Non-enzymatic hydrogen peroxide sensor.

MeSH terms

  • Biosensing Techniques
  • Carbon
  • Electrochemical Techniques
  • Hydrogen Peroxide
  • Metal Nanoparticles*
  • Platinum
  • Reproducibility of Results

Substances

  • Platinum
  • Carbon
  • Hydrogen Peroxide