An evaluation of the electrochemical characteristics of 2-nitrobenzene-1,4-diamine organic monomer on gold or platinum thin film electrodes with a full-block random design in acidic environments

Abstract

The randomized all-design statistical method utilized to elaborate and optimize an experimental model of the electropolymerization of 2-nitrobenzene-1,4-diamine organic monomer. Thin film synthesis was performed using electrochemical cyclic voltammetry (CV) on Micrux® single electrodes made of platinum and gold (A = 0.008 cm2) in 0.1 mol dm–3 H2SO4 at 1.2 pH. The Micrux® electrode chips proved to be reusable with a single sample size of only 10 µL. The electrode material, sampling rate, and monomer concentration were investigated using the phenomenon of electropolymerization. The interaction between these factors was analyzed. The first anodic and second current peaks were selected as the response results. In the first module, a new chip was used for each run, while a previously refurbished chip was used in the second module. The morphological features of the polymers were observed using scanning electron microscopy. A reduction of the spherical particle size was observed when an increase in the sweep scan rate occurred. The importance of the block design, the interaction between the factors, the advantages of the used techniques, and the electropolymerization process of the new polymer were assessed. In comparison with the classical sputtering process, it was demonstrated that an electropolymerization coating using a Micrux® single electrode combined with a block design can be an effective approach to coat materials in optimum conditions.