Researchers developed a better way to make activated carbon from corncob, increasing its surface area and pore volume. They used a fluidized bed reactor to heat the corncob, then treated it with KOH solution and activated it in a furnace. The new method resulted in activated carbon with a specific surface area of 2880 m(2) g(-1) and a specific pore volume of 1.664 cm(3) g(-1), which is higher than in previous studies.