Template-free synthesis of hollow carbon-based nanostructures from MOFs for rechargeable battery applications

Hollow carbon-based nanostructures (HCNs) have found broad applications in various fields, particularly rechargeable batteries. However, the syntheses of HCNs usually rely on template methods, which are time-consuming, low-yield, and environmentally detrimental. Metal-organic frameworks (MOFs), constructed by organic ligands inorganic metal nodes, been identified as effect platforms for preparing without adding extra templates. This review summarized recent progress template-free synthesis enabled MOFs their Different strategies were introduced first with mechanistic insights into hollowing mechanism. Then electrochemical performances discussed highlight structure-function correlation. It is that built-in cavities nonporous critical importance to increase storage sites high capacity, enhance charge mass transport kinetics high-rate capability, ensure resilient electrode structure stable cycling. Finally, challenges opportunities regarding MOFs-derived batteries discussed.