Abstract
The electrocatalytic and analytical ability to glucose on a highly dispersed Pt nanoparticles supported on active carbon (Pt/C) modified electrode was investigated. The Pt/C nanocomposite was synthesized using a microwave method. The structural characterization and surface morphology of the prepared Pt/C nanocomposite was examined using X-ray diffraction, energy-dispersive X-ray, scanning and transmission electron microscopy. The results show that the Pt nanoparticles with 3–10 nm in diameter are well dispersed on the surface of active carbon. The electrocatalytic and analytical ability of Pt nanoparticles supported on active carbon modified electrode (Pt/C/GCE) was studied using cyclic voltammetry (CV) and chronoamperommetry. The Pt/C/GCE exhibits strong electrocatalytic activity to the glucose oxidation. Under optimal conditions, the Pt/C/GCE performed a current response towards glucose oxidation at a broad concentration range from 0.05 to 11.95 mM. Two linear regions could be observed at 0.05 to 3.5 mM with a sensitivity of 1.29 μA mM–1 cm–2 and at 3.5 to 11.95 mM with a sensitivity of 0.85 μA mM–1 cm–2, respectively. The Pt/C/GCE exhibits sufficient sensitivity and abilities of anti-interference.
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Published in Russian in Elektrokhimiya, 2016, Vol. 52, No. 3, pp. 271–277.
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Zhou, X., Zheng, X. Investigation of electrocatalytic and analytical ability of Pt nanoparticles supported on active carbon modified electrode to analytical determination of glucose. Russ J Electrochem 52, 233–238 (2016). https://doi.org/10.1134/S1023193516030034
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DOI: https://doi.org/10.1134/S1023193516030034