In situ conversion of metal (Ni, Co or Fe) foams into metal sulfide (Ni3S2, Co9S8 or FeS) foams with surface grown N-doped carbon nanotube arrays as efficient superaerophobic electrocatalysts for overall water splitting

Metal (Ni, Co or Fe) foams can be in situ converted into metal sulfide (Ni₃S₂, Co₉S₈ or FeS) foams with surface grown N-doped carbon nanotube arrays, and work as efficient superaerophobic electrocatalysts for overall water splitting.