COBALT-BASED CHALCOGENIDES NANOSTRUCTURE ARRAYS AS HIGHLY EFFICIENT BIFUNCTIONAL CATALYST FOR OXYGEN REDUCTION AND EVOLUTION REACTIONS

摘要

Co_xSe_y showed excellent activity towards the oxygen reaction inrnalkaline media. Further improvement of catalytic activity wasrnobserved by pattering the electrode surface which is due to thernincreasing of electrode surface area. Ni-doped cobalt selenide wasrnalso found to be highly active ORR/OER catalyst.