Enhanced CO2 capture capacity on open-cell Mg foams via humid impregnation with lithium at low temperatures

摘要: Abstract In the present work, carbon dioxide ( CO 2 ) capture capacity was evaluated after a humid impregnation process performed on surface of open-cell magnesium Mg foams, with an alkaline solution lithium hydroxide LiOH . The foams were fabricated by infiltration casting method, using irregular particles sodium chloride NaCl as space holders. Optical microscopy, helium He pycnometry and nitrogen N adsorption-desorption techniques used to measure pore size, density ρ foam specific area A s , respectively. microstructural modifications analysed means X-ray diffraction (XRD) scanning electron microscopy (SEM). Afterwards, thermogravimetric analysis evaluate CO2 under different water steam H O conditions. After H2O–CO2 chemisorption process, carbonated products identified attenuated total reflexion – Fourier transform infrared spectroscopy (ATR-FTIR) technique then, quantified through thermal decomposition process. Thermal outcomes showed that considerably increased Li impregnation. later consequence oxide high reactivity CO2, its effect thickening film layer formed foams. These results promote possible use this kind cellular material structured captor, proposing new functional application for metallic giving alternative current environmental issues.