Browsing by Author "Castellanos Bernal, Cindy Vanessa"
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Item Empleo de melaza industrial en la síntesis de óxidos metálicos mixtos con potencial aplicación industrial(Universidad Santiago de Cali, 2023) Castellanos Bernal, Cindy Vanessa; Morales Morales, Jimmy Alexander (Director)In this work, lanthanum ferrite was prepared by mixing solutions of LaNO3•6H2O and Fe(NO3)3•9H2O with molasse and stirring continuously using a standard stirrer until a porous solid was obtained. It was macerated with agate mortar after being calcined in a muffle at various temperatures between 800 and 900ºC. This substance is placed in a vial for subsequent analysis using analytical methods like thermogravimetry (TGA), infrared vibrational spectroscopy (IR), and X-ray diffractometry (XRD). LaFeO3 nanoparticles measuring 89.2 nm were produced by employing ultrasound to aid in the synthesis and a 9-hour calcination period with a molasses/lanthanum ratio of 1.125. The increase in stated ratio and the shorter calcination time led to a larger crystallite size. The produced mixed metal oxide's electroconductive activity indicated how it might be used to catalyze important reactions, like the electrogeneration of oxygen.