Abstract
The effect of the electrochemical reduction of carbon dioxide (CO2) on the structure and morphology of two different synthesised nano FeTiO3 composite was examined after a fixed-potential bulk electrolysis process. FeTiO3 was used as the cathode, stainless steel (SS) plate as anode and CO2 saturated NaHCO3 and KNO2 as electrolysis. At optimized condition, CO2 is effectively reduced to urea. Fourier transform infrared spectroscopy (FTIR) used to examine the two different synthesis of nano FeTiO3 surfaces to reveal the carbonate ions and urea species during reduction. Ultraviolet–visible spectroscopy (UV) peaks explain the urea function groups present in electrolyte after the CO2 and NO2 reduction. Charge transfer resistance is using Electrochemical Impedance Spectroscopy (EIS) analysis. A systematic Cyclic Voltammetry (CV) and Linear Sweep Voltammetry (LSV), two different synthesis of FeTiO3 composite, were performed in order to decouple electrochemical reduction processes of CO2 and NO2 to urea in aqueous solutions.
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Siva, P., Prabu, P., Selvam, M. et al. Electrocatalytic conversion of carbon dioxide to urea on nano-FeTiO3 surface. Ionics 23, 1871–1878 (2017). https://doi.org/10.1007/s11581-017-1985-1
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DOI: https://doi.org/10.1007/s11581-017-1985-1