The most common way to determine the specific surface of materials is to utilise direct methods, such as the flow method and the adsorptive method with the implementation of the adsorption isotherm equations. In our work we used the Brunauer, Emmet and Teller (BET) equation for the nitrogen adsorption isotherm description. Our goal was to examine the influence of reducing agents on the specific surface area of reduced graphene oxide. Graphene oxide was reduced by thiourea dioxide, thiourea, ammonium thiosulfate and sodium hydrosulfite.
