Phase Transfer‐Catalyzed Fast CO2 Absorption by MgO‐Based Absorbents with High Cycling Capacity

Molten salts facilitate the reaction of CO2 with MgO by providing an alternate pathway to traditional gas-solid reactions. Molten salts partially dissolve bulk MgO and provide activated species accessible to CO2 at gas-solid-liquid triple phase boundaries. This methodology is also applicable to other basic metal oxides and molten salts, inspiring the design of new absorbent systems.