Abstract
The electrochemical behavior of dihydroxybenzenes was investigated with stationary and rotating electrodes modified by a new material, carbon atom wires (CAWs), using cyclic and differential pulse voltammetry and a hydrodynamic technique. The CAW-modified electrode showed high electrocatalytic activity to the redox of dihydroxybenzenes and capability of determining three dihydroxybenzene isomers simultaneously. The anodic peak potential on the cyclic voltammogram shifted by , , and in an individual hydroquinone, catechol, and resorcinol solution, respectively, at the CAW-modified glassy carbon electrode compared to a bare electrode. In a solution containing coexistent dihydroxybenzenes, for each, the anodic peak potentials of hydroquinone and catechol were apart as far as on the differential pulse voltammogram, and the oxidative limiting currents of both hydroquinone and catechol were linear with respect to their concentrations in the range of in a pH 5.0 phosphate buffer solution at the CAW-modified electrode.
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