place, as a similar sorption profile may be seen regardless of whether anthraquinone was physisorbed or chemisorbed to the carbon surface. Furthermore, as molecular nitrogen has a significantly smaller radius than ions used in the ionic liquid electrolyte, 1-butyl-3methylimidazolium bis(trifluoromethyl sulfonyl)imide ([bmim][TFSI]), gas sorption cannot provide information about the electrochemical accessibility of pores. In summary, the gas sorption measurements support the presence of anthraquinones within the mesoporous carbon and show that significant porosity is retained, which should enable CO2 species to enter the pores in electrochemical carbon capture measurements.