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 CO2 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 m2 g−1 and a CO2 adsorption capacity of 2.1 mmol g−1 (at 273 K), the improved Hummer’s product was superior to the other two nanocarbons tested.