In recent years, alternatives to conventional temperature-and pressure-swing carbon capture have been developed to avoid high regeneration energies, high operational costs, and material degradation at high temperatures. Electrochemical carbon dioxide capture is emerging as a technology that can be operated under isothermal conditions with high energy efficiency by limiting energy loss via heat. Electrochemical carbon capture has been implemented using a range of approaches including supercapacitive swing adsorption (SSA), pH swing, and with redox-active molecules that directly capture CO2 following electrochemical reduction. The most common class of redox-active molecules used in the direct electrochemical carbon capture approach are quinones. The use of quinone molecules for carbon capture has had large popularity due to their reversible redox activity, stability and ease of tuneability. Quinones can be incorporated into CO2 capture devices in two main ways: 1) as part of a solid electrode in a battery-like system and 2) in the electrolyte as part of a redox-flow battery-like system. A limitation of using quinones directly in the solid state is their high solubility in organic electrolytes, reducing the lifetime of the CO2 capture process. Wielend et al. showed that thinfilm quinones electrode captured CO2 in the initial cycles, however upon further cycles a high proportion of quinones leaked into the electrolyte solution. A way this has been overcome was to synthesise quinone polymer molecules and to form a composite electrode with carbon nanotubes, which allowed long-term stability up to 7000 cycles. While very promising, these systems require extensive synthetic procedures. On the other hand, quinones in redox-flow battery-type systems have shown high stability for CO2 capture over many cycles, however, encounter similar problems to conventional redox-flow batteries; self-discharging, membrane crossover and limited quinone solubility in aqueous conditions. A promising way to bypass issues associated with quinone solubility, whether in organic or aqueous systems, is to covalently attach quinones to an electrode surface. In our previous study, anthraquinones molecules were successfully attached to a mesoporous carbon network using a diazonium radical reaction and the resulting electrodes showed reversible carbon capture up to 1000 cycles, albeit with a 55% reduction in electrochemical capacity and a gradual decrease in adsorption capacity under a CO2 atmosphere. A loss of grafted quinones by 65% was also observed after extended cycling, despite the covalent attachment.