Recent advances in Fe-based metal-organic framework derivatives for battery applications

Due to the rapid energy consumption and environmental pollution, it has become necessary to develop rechargeable batteries with better electrochemical performance, particularly when traditional rechargeable batteries are incapable of meeting the current and future demands of the energy market. As a result, it is important to further explore innovative materials for the basic components of rechargeable batteries. In recent years, metal-organic frameworks (MOFs) and their derivatives have been widely studied in the field of electrochemical energy storage due to their advantages of high porosity, modifiable functional groups and controllable chemical composition, making them better candidate materials for the next generation of advanced batteries. Among them, Fe-based metal-organic framework (Fe-MOF) derivatives with excellent electrochemical properties have been successfully synthesized by using the corresponding Fe-MOFs as templates. In this paper, the recent advances in Fe-MOF-derived functional materials as electrodes and electrocatalysts for rechargeable battery systems are discussed. Starting from summarizing and comparing the controllable synthesis routes of Fe-MOFs, the recent progress of Fe-MOF derivatives as electrodes and electrocatalysts in lithium-ion batteries, lithium-sulfur batteries, sodium-ion batteries, zinc-air batteries and other batteries is further explored. Subsequently, the problems that exist in the current application of Fe-MOF derivatives as battery materials are discussed alongside possible and feasible solutions. Finally, some reasonable pathways and strategies for the design of Fe-MOF derivatives are suggested.