Abstract
The present communication reports on the preparation of polyaniline nanofibers (PANINFs) by chemical oxidative polymerization of aniline under rapid stirring using ammonium persulfate as the oxidant in acidic aqueous media in the presence of carbon nanoparticles. The subsequent treatment of such nanofiber with a AgNO3 aqueous solution leads to in situ chemical reduction of Ag+ on them to form Ag nanoparticle-decorated PANINFs. The resultant composites show good catalytic activity toward the reduction of H2O2. An effective enzymeless H2O2 sensor based on such composites is also constructed. It exhibits a fast amperometric response time 2 s, and it has a linear detection range from 0.1 to 60 mM and detection limit of 0.9 μM at a signal-to-noise ratio of 3, respectively.
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Published in Russian in Elektrokhimiya, 2014, Vol. 50, No. 1, pp. 105–110.
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Chang, G., Luo, Y., Lu, W. et al. Carbon nanoparticles-induced formation of polyaniline nanofibers and their subsequent decoration with Ag nanoparticles for nonenzymatic H2O2 detection. Russ J Electrochem 50, 95–99 (2014). https://doi.org/10.1134/S1023193513020043
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DOI: https://doi.org/10.1134/S1023193513020043