In this study, the tunability of the functionalization process using different carbon electrode materials is investigated. A series of four anthraquinone-functionalized carbon materials are characterised and investigated for electrochemical carbon dioxide capture. We show that the presence of carbon mesopores leads to an increase in the amount of grafted anthraquinone, although it comes at the cost of material stability. Conversely, a predominantly microporous carbon is demonstrated to enhance stability during cycling, despite a lower quinone uptake.