Faster Microwave-Assisted Synthesis of Microspherical Carbons from Commercial and Biomass-Derived Carbohydrates

Identificador:  imarina:9466787

Handle: https://hdl.handle.net/20.500.11797/imarina9466787

Autors:  Romero-Anaya, AJ; González, MD; Granados-Reyes, J; Arrieche-Hernández, LE; Cesteros, Y

Resum:
Carbon microspheres were prepared by microwave-assisted hydrothermal treatment, at 180 degrees C, of commercial carbohydrates (saccharose, glucose, and xylose) and xylose extract obtained from almond shells with varying synthesis parameters. When 1.6 M aqueous solutions of commercial carbohydrates were used, 2-10 mu m carbon microspheres were obtained from saccharose after 15 min, while a longer amount of time (60 min) and the addition of acid medium (1% v/v H2SO4, 1% v/v H3PO4) were needed to obtain carbon microspheres from commercial xylose and glucose (