Hollow bimetallic cobalt-based selenide polyhedrons derived from metal–organic framework: an efficient bifunctional electrocatalyst for overall water splitting

Hollow bimetallic cobalt-based selenide polyhedrons MxCo_1−xSe₂ were successfully synthesized by a simple solvothermal strategy using bimetallic MOFs as template. This catalyst exhibits excellent electrocatalytic performance for overall water splitting.