Significantly enhanced oxygen reduction activity of Cu/CuNxCy co-decorated ketjenblack catalyst for Al-air batteries

Cu and CuNxCy co-decorated ketjenblack (KB) composite (denoted as Cu-N-KB-acid) was synthesized by a facile, scalable and relatively high-yield way. It exhibited excellent ORR activity and would be a promising candidate for replacing commercial Pt/C.198