Abstract
Covalent organic frameworks (COF) or metal-organic frameworks have attracted significant attention for various applications due to their intriguing tunable micro/mesopores and composition/functionality control. Herein, a coordination-induced interlinked hybrid of imine-based covalent organic frameworks and Mn-based metal-organic frameworks (COF/Mn-MOF) based on the MnN bond is reported. The effective molecular-level coordination-induced compositing of COF and MOF endows the hybrid with unique flower-like microsphere morphology and superior lithium-storage performances that originate from activated Mn centers and the aromatic benzene ring. In addition, hollow or core-shell MnS trapped in N and S codoped carbon (MnS@NS-C-g and MnS@NS-C-l) are also derived from the COF/Mn-MOF hybrid and they exhibit good lithium-storage properties. The design strategy of COF-MOF hybrid can shed light on the promising hybridization on porous organic framework composites with molecular-level structural adjustment, nano/microsized morphology design, and property optimization.
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