Polyoxometalate-based composite cluster with core–shell structure: Co4(PW9)2@graphdiyne as stable electrocatalyst for oxygen evolution and its mechanism research

Co 4 (PW 9 ) 2 @GDY is composed of polyoxometalate (POM) and graphdiyne (GDY), which exhibits excellent electrochemical performance for oxygen evolution reaction. This is due to its strong electron-transfer ability and higher conductivity of GDY.