AuNi alloy nanoparticles supported on reduced graphene oxide as highly efficient electrocatalysts for hydrogen evolution and oxygen reduction reactions

290Various AuNi/rGO electrocatalysts have been synthesized and their electrochemical activity has been assessed for HER and ORR in deaerated 0.5 M H2SO4 aqueous solutions. Our results showed that the developed electrocatalysts exhibited comparable activity to that of commercial Pt/C catalyst. (1) bare rGO (2) Au NPs/rGO (3) Ni NPs/rGO (4) AuNi 1/rGO (5) AuNi 2/rGO (6) AuNi 3/rGO (7) Pt/C.