Heterostructured metal oxides realized by quenching-induced structural transformation

Abstract

A multiple quenching strategy is developed to prepare heterostructured NiMoO 4 /NiFe 2 O 4 catalyst by in situ structural transforming small size (<27 nm) NiMoO 4 to NiFe 2 O 4 , thus delivering significant OER/ORR catalytic activity in zinc–air batteries.