Highly efficient water splitting over a RuO2/F-doped graphene electrocatalyst with ultra-low ruthenium content

A RuO₂/F-graphene catalyst with a low Ru content of 6.9 wt% only needs potentials of 1.56 V in alkaline medium and 1.73 V in neutral medium to reach a current density of 10 mA cm⁻² for electrocatalytic water splitting.