Production of activated carbons from corn cobs waste by steam or H3PO4 activation for effective CO2 capture and industrial gas selectivity towards CO2/CH4/N2 - Kanagat Kishibayev; Bartosz Dziejarski; Rustam Tokpayev; Tamina Khavaza; Zair Ibraimov; Maksat Yergeshov; Mikhail Nauryzbayev; Joanna Sreńscek Nazzal; Jarosław Serafin (Fuel, 2026)