Zn/Fe-MOFs-derived hierarchical ball-in-ball ZnO/ZnFe2O4@carbon nanospheres with exceptional lithium storage performance

We have demonstrated a simple and feasible route to fabricate anovel hybrid of hollow porous ZnO/C nanocages with high surface areas of 256 m2 g−1 and a large carbon content of about 50 wt % as anode materials for lithium ion batteries (LIBs) are synthesized by a one-step pyrolysis of hollow MOF-5 as both precursor and self-sacrificing template under an N2 atmosphere.201