Journal
SYNTHETIC METALS
Volume 221, Issue -, Pages 153-158Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2016.08.020
Keywords
Prussian blue; Polyaniline; Graphene oxide; Hydrogen peroxide; Nonenzymatic sensor
Funding
- National Science Foundation of China [21575113, 21275116, 21105080]
- Specialized Research Fund for the Doctoral Program of Higher Education [20126101120023]
- Natural Science Foundation of Shaanxi Province in China [2013KJXX-25]
- Scientific Research Foundation of Shaanxi Provincial Key Laboratory [13J5097, 13J5098, 14J5094, 15J5100]
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Prussian blue/polyaniline/graphene oxide (PB/PANI/GO) nanocomposites were synthesized and used for electrochemical sensing of hydrogen peroxide (H2O2). PB/PANI/GO nanocomposites were synthesized through a facile one-step approach, where aniline acted as both the precursor of PANI and the reductant for FeCl3-K-3[Fe(CN)(6)], therefore making polymerization of aniline and anchoring of PB nanoparticles on PANI/GO occur simultaneously. Then, the nanocomposites were characterized by transmission electron microscopy (TEM), X-ray diffraction spectroscopy (XRD), fourier transform infrared spectroscopy (FTIR) and electrochemical techniques. The results indicated that PB nanoparticles with the size of about 4.0 nm were homogeneously distributed on the surface of PANI/GO, which made the sensor based on PB/PANI/GO exhibit an excellent performance toward H2O2 detection with a wide linear range of 5.0 mu M to 1.275 mM, a sensitivity of 60.16 mu A mM(-1) cm(-2) and a low detection limit of 1.9 mu M (S/N = 3). (C) 2016 Elsevier B.V. All rights reserved.
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