An overview of metal-organic frameworks-derived carbon as anode materials for sodium- and potassium-ion batteries

With the decreasing abundance of lithium and the increasing cost of lithium-ion batteries (LIBs), exploring alternative metal-ion batteries has been a hotspot in the energy storage research area. Among next-generation batteries, sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs) have been considered as competitive alternatives to LIBs due to the earth abundance of sodium and potassium. Metal-organic frameworks (MOFs)-derived carbon materials with high porosity, unique architectures, and abundant heteroatoms have been demonstrated as promising anode materials in SIBs and PIBs with high capacity and long cycling stability due to the adsorption energy storage mechanism. In this review, we highlight the advantages of carbon materials derived from MOFs as anode materials in SIBs and PIBs. In addition, the typical works and recent achievements are also introduced. Finally, the challenges and perspectives for further developing MOFs-derived carbon anode materials for SIBs and PIBs are also discussed.