Research Information System
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, vol.324, 2026 (SCI-Expanded, Scopus)
This study explores the impact of novel flash heating technique for activated carbon production, especially focusing on the effectiveness of high-pressure carbon dioxide uptake capability. The adsorption performance of activated carbons produced from agricultural biomass (hazelnut shell, corn stalk, and rice husk) was evaluated across a range of low to high pressures and temperatures. Notably, the highest CO2 uptake was observed for rice husk derived activated carbon, achieving 21.06 mmol/g at 15 degrees C and 50 bar, followed by corn stalk (20.05) and hazelnut shell (17.75 mmol/g) at the same conditions. Results showed that rice husk derived activated carbon exhibited the highest CO2 uptake capacities due to its advantageous textural properties, including high internal pore volume and specific surface area. Also, at low and high pressure and ambient temperature conditions, these products have more CO2 uptake results compared that of commercial activated carbons. Additionally, these products displayed rapid adsorption kinetics, with adsorption saturation and sorption rate stabilization occurring in less than two minutes. Reasonable isosteric heat values between 24.20 and 28.80 kJ/mol were obtained. Flash heating method not only produces high performance adsorbents rapidly but also demonstrates a sustainable alternative to traditional fossil sources and biomass-based adsorbents, offering substantial potential for scalable CO2 uptake process applications.