Abstract
Organic–inorganic hybrid films composed of polyaniline/nickel hexacyanoferrate (PANI/NiHCF) were fabricated on platinum substrates using unipolar pulse one-step electrodeposition. The deposition mechanism of hybrid film was proposed: Due to high potential of unipolar pulse electrodeposition, which avoided the reduction of Fe(CN)63-, the films with high electrocatalytic property and “insoluble” form of NiHCF were achieved. The morphology and composition of PANI/NiHCF hybrid film were characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and Fourier transform infrared spectroscopy (FT-IR). The effect of pulse potential on the electrochemical performance of hybrid film was investigated in detail. Results showed that pulse potential had a major impact on electroactivity and stability of the film, and the optimal deposition potential was 1.0 V. The hybrid ?lms exhibited high electrocatalytic activity, eligible sensitivity and low detection limit in detecting hydrogen peroxide (H2O2). The linear range for the detection of H2O2 was from 4.0×10-4 to 1.6×10-2 mol·L-1 with a correlation coefficient of 0.9991, a sensitivity of 1075 mA·(mol·L-1)-1·cm-2 and a detection limit of 6.09×10-5 mol·L-1.
Graphical Abstract
Keywords
unipolar pulse, polyaniline, nickel hexacyanoferrate, hybrid film, hydrogen peroxide
Publication Date
2014-12-28
Online Available Date
2014-05-14
Revised Date
2014-05-09
Received Date
2014-03-11
Recommended Citation
Sen-liang LIAO, Xiu-min LI, Xiao-gang HAO, Yan-hong WANG, Chun-feng XUE, Yong-hong WANG.
One-Step Synthesis of PANI/NiHCF Hybrid Film Using Unipolar Pulse Electrodeposition and Its Electrocatalytic Reduction Performance for H2O2 Detection[J]. Journal of Electrochemistry,
2014
,
20(6): 563-570.
DOI: 10.13208/j.electrochem.140311
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol20/iss6/10
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