Controlled chitosan coated Prussian blue nanoparticles with the mixture of graphene nanosheets and carbon nanoshperes as a redox mediator for the electrochemical oxidation of nitrite

  • Cui L
  • Zhu J
  • Meng X
 et al. 
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The graphene nanosheets and carbon nanospheres mixture (GNS-CNS) was prepared by electrolyzing graphite rob in KNO3solution under a constant current. The cationic chitosan (CS) coated Prussian blue (PB) as an efficient redox mediator could interact with the anion GNS-CNS via electrostatic interaction. The synergy effect of CS@PB nanoparticles and GNS-CNS contributed to the excellent electrochemical response towards the nitrite oxidation. The as-prepared CS@PB/GNS-CNS modified glass carbon (GC) electrode demonstrated its high sensitivity, low detection limit, short response time, and wide concentration range for the nitrite detection. © 2011 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Chitosan
  • Electrochemical oxidation
  • Graphene nanosheets and carbon nanospheres mixture
  • Nitrite
  • Prussion blue

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  • Lin Cui

  • Jianying Zhu

  • Xiaomeng Meng

  • Huanshun Yin

  • Xiaoping Pan

  • Shiyun Ai

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