High-temperature CO2 electrolysis in solid oxide electrolysis cells cathode: Advances and perspective

Stimulated by awareness of the energy crisis and the strategy of sustainable development, fuel cell technology has attracted extensive attention from researchers in energy storage, conversion, and utilization fields. In particular, high-temperature CO2 electrolysis in solid oxide electrolysis cells has high application potential due to its excellent current density and energy efficiency. This perspective summarizes the electrode material configurations, electrolysis mechanisms, working modes, and stack devices for high-temperature CO2 electrolysis and also highlights the opportunities and challenges in future research and application.