Abstract
In this research a novel nickel complex was used as electrocatalyst for electrooxidation of glycine. A nano-structured nickel chelidamic acid was electrodeposited on a bimetallic Au-Pt inorganic-organic hybrid nanocomposite modified electrode. The electrode possesses a three-dimensional (3D) porous network nanoarchitecture, in which the bimetallic Au-Pt NPs serving as metal nanoparticle based microelectrode ensembles are distributed in the matrix of interlaced 3,3′,5,5′-tetramethylbenzidine (TMB) organic nanofibers (NFs). Electrocatalytic oxidation of glycine on the surface of modified electrode was investigated with cyclic voltammetry method and the results showed that the nickel chelidamic acid films displayed excellent electrochemical catalytic activities towards glycine oxidation. The hydrodynamic amperometry at rotating modified electrode at constant potential versus reference electrode was used for detection of glycine. Under optimized conditions the calibration plots are linear in the concentration range 1 μM-0.75 mM and detection limit was found to be 0.3 μM.
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Published in Russian in Elektrokhimiya, 2014, Vol. 50, No. 1, pp. 53–61.
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Azadbakht, A., Abbasi, A.R. Fabrication of a high sensitive glycine electrochemical sensor based on immobilization of nanostructured Ni chelidamic acid and bimetallic Au-Pt inorganic-organic hybrid nanocomposite onto glassy carbon modified electrode. Russ J Electrochem 50, 46–53 (2014). https://doi.org/10.1134/S1023193513010035
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DOI: https://doi.org/10.1134/S1023193513010035