Narrow Results

Due to the importance of producing clean energy through systems such as alcoholic fuel cell, methanol, ethanol, 1-propanol, and 2-propanol, these alcohols were oxidized at the modified graphite electrode by NiTPPBr₆ / NiTPPBr₈ as a clean electrocatalyst in an alkaline media. This process investigated by various techniques such as cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS), in all cases showed Cottrell type behavior with the diffusion of coefficients of 2.04 × 10${}^{-6}$, 1.3 × 10${}^{-6}$ 8.3 × 10${}^{-6}$ cm${{}^2}^{}·$ s${}^{-1}$ for the corresponding alcohols respectively. Likewise, the catalytic rate constant for methanol oxidation was found to be 2.9 × 10⁸ cm³mol${{}^{-1}}^{}·$ s${}^{-1}$ through chronoamperometric measurements. Interestingly, the order in activity for oxidation of the alcohols introduced with the electrocatalyst was: 2-propanol $>$ 1-propanol $>$ ethanol $>$ methanol and was unlike previous studies in which the oxidation current was reduced by increasing the number of carbon atoms from methanol to propanol.

In this study, electrochemical oxidation of petroleum was performed for the first time. Since petroleum is a rich source of hydrocarbons, its oxidation and electron production resulting in the production of electricity which is green energy is much more efficient than burning it. Electrochemical oxidation of petroleum with Ni-porphyrin-modified graphite electrode in alkaline media and by cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS) techniques were investigated. Due to the existence of two aqueous and organic phases, adsorption played a vital role in the process. To further confirm the accuracy of petroleum electrooxidation, electrooxidation of its compounds such as xylene and toluene was performed with the Ni-porphyrin electrode and by the mentioned techniques, which confirmed the previous data.