MOFs-derived hollow materials for electromagnetic wave absorption: prospects and challenges

Designing and preparing hollow nanomaterials is one of the most feasible ways to obtain the high-performance electromagnetic wave absorber. To this end, Metal–organic frameworks (MOFs), featuring regular crystalline structures with coordinated metal nodes and organic linkers, have won the widespread attention. Here, the recent progress in the study of MOFs-derived hollow materials for electromagnetic wave absorption are summarized and discussed. Some remarkable examples in the synthesis of hollow structures from MOFs precursors are illustrated in terms of the preparation methods and structural architectures. Thereafter, their characteristics and advantages as electromagnetic wave absorber are analyzed and demonstrated. Finally, it summarizes the current achievements, limitations, and urgent challenges, and provides some views on potential solutions and possible future trends.