MOFs-derived advanced heterostructure electrodes for energy storage

To satisfy the ever-growing demand for electrochemical energy storage devices, significant research efforts have been devoted to developing promising electrode materials and uncovering the energy stor-age mechanism. Recently, the construction of MOFs-derived heterostructures for electrode materials has received a great deal of attention since it is a reasonable way to optimize energy storage performance by combining the merits of building blocks while neutralizing the drawbacks, which could greatly enhance the capacity and rate performance. Moreover, MOFs-derived heterostructures with highly structurally and compositionally tunable can be easily customized and applied to different electrochemical energy storage devices. In this review, a comprehensive overview on the structural features and mechanism of MOFs-derived heterostructures, including unique pore structure and large surface area, built-in elec-tric fields, and abundant phase boundaries, which could facilitate the penetration of electrolyte, enhance electrical conductivity and promote ion diffusion kinetics, is firstly presented. Thereafter, the classifica-tion and synthesis strategies for MOFs-derived heterostructures are also described. Next, the recent pro-gress of MOFs-derived heterostructures in lithium-ion batteries (LIBs), sodium-ion batteries (SIBs), lithium-sulfur batteries (Li-S batteries), supercapacitors (SCs), and other energy storage devices are dis-cussed. Finally, the challenges and future outlook of promising MOFs-derived heterostructures for elec-trochemical energy storage are concluded.(c) 2022 Elsevier B.V. All rights reserved.