Prussian blue (PB)/carbon nanopolyhedra/polypyrrole composite as electrode: a high performance sensor to detect hydrazine with long linear range - INSA Toulouse - Institut National des Sciences Appliquées de Toulouse Access content directly
Journal Articles Sensors and Actuators B: Chemical Year : 2017

Prussian blue (PB)/carbon nanopolyhedra/polypyrrole composite as electrode: a high performance sensor to detect hydrazine with long linear range

Abstract

A novel low-cost and highly efficient hydrazine sensor based on nitrogen-doped carbon nanopolyhedra (CNP), Prussian blue (PB) and conductive polymer is synthesized. CNP containing cobalt, which were prepared via pyrolysis of the Zeolitic Imidazole Framework-67 (ZIF-67), are found to be catalytically active for the synthesis of PB. Polypyrrole (PPy) is then coated on the PB/CNP composite to provide high conductivity and an environmental stability of the PB/CNP/PPy compound. The as-prepared electrode was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and electrochemical methods. The electrode modified with PB/CNP/PPy exhibits an excellent activity for the electrocatalytic oxidation of hydrazine. It demonstrated a rapid response of less 2 s, a sensitivity of 0.22 A M−1, a long linear range from 7.5 × 10−7 M to 1.7 × 10−3 M and a low detection limit (S/N = 3) of 2.9 × 10−7 M, as well as a remarkable stability and selectivity.
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Dates and versions

hal-02007753 , version 1 (05-02-2019)

Identifiers

  • HAL Id : hal-02007753 , version 1

Cite

Jihua Zhao, Pengwei Yue, Simon Tricard, Tong Pang, Yan Yang, et al.. Prussian blue (PB)/carbon nanopolyhedra/polypyrrole composite as electrode: a high performance sensor to detect hydrazine with long linear range. Sensors and Actuators B: Chemical, 2017, 251, pp.706-712. ⟨hal-02007753⟩
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