Abstract
We herein report a simple method for the preparation of multiwalled carbon nanotubes-anthraquinone-2-carboxylic acid (AQ-COOH-AMWCNTs) nano-composite. For the preparation of the composite, multiwalled carbon nanotubes have been functionalized with amino group (AMWCNTs) using 3-aminopropyltrimetho-xysilane. Then, anthraquinone-2-carboxylic acid is coupled to amino functionalized multiwalled carbon nanotubes (AMWCNTs) by carbodiimide coupling. Characterization of the material has been performed with scanning electron microscopy (SEM), transmission electron microscopy (TEM), fourier transform IR (FTIR) and cyclic voltammetry (CV). The prepared material exhibited electrocatalytic behavior towards the reduction of oxygen to hydrogen peroxide with a detection limit of 0.02 ppm. The prepared material was stable with no leaching observed of the mediator.
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