Browsing by Author "Ocampo Calvo, Juan Manuel"
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Item Obtención y caracterización de derivados de carbono con posibles propiedades tecnológicas a partir de cáscara de cacao(Universidad Santiago de Cali, 2023) Ocampo Calvo, Juan Manuel; Castro Narváez, Sandra Patricia (Directora)Carbonaceous materials from agro-industrial wastes were synthesized to provide a phytosanitary management to the problems presented in cocoa plantations and to give an added value to the by-products coming from the shell of this fruit. The products were obtained by impregnation with H3PO4 of the raw material and later heat treatment at 600ºC for 2 hours and 4 hours to obtain activated carbons that were oxidized by the modified Hummers method and a reduction with ascorbic acid, The products obtained were characterized by calorimetric (TGA-DSC), spectroscopic (UV-Vis, IR-TF, Raman), morphological (SEM), Zeta potential, particle size) and electrochemical (VC, EIE) techniques, finding that the oxidized species are more suitable as raw material in the manufacture of supercapacitors. This study contributes to the cocoa agroindustry by giving an added value to cocoa shells; it also opens a door to the study of supercapacitors obtained with a sustainable concept.