Zeolitic imidazolate framework/Prussian blue analogue derived CoSe2/FeSe2 heterostructure for long-cycle aluminum-ion batteries

The CoSe 2 /FeSe 2 heterostructure synthesized from a MOF-on-MOF precursor demonstrates high specific capacity and long-term cycle stability as a cathode for AIBs due to the internal electric field at the CoSe 2 /FeSe 2 interface.