The impact of surface chemistry and texture on the CO2 uptake capacity of graphene oxide

Abstract The influence of the synthesis route on the surface characteristics and CO 2 uptake of graphene oxide was studied. Powders derived from the classical Hummer’s method approach and the so-called improved Hummer’s method were benchmarked against zeolite 13X and certified carbon nanotubes. With a specific surface area of 283 m 2  g −1 and a CO 2 adsorption capacity of 2.1 mmol g −1 (at 273 K), the improved Hummer’s product was superior to the other two nanocarbons tested.