Yes - It is interesting if one wants to split water efficiently. Thanks for posting it.
The authors say RuO2 is the most efficient anode. As for most efficient cathode, there are many claimants including graphene, Pt and cobalt alloys and of course nickel and alloys. Water does have a small degree of "built-in" overunity potential, as the minimum voltage to split (1.23 V) is slightly less than the effective recombination potential, but catch-22 there is no real gain as the difference must come from ambient heat; and the rate of splitting is very slow below 2 V. RuO2 . is a curiously self-referential name in the sense of Overunity . "are you O too?" From: Moab Moab Surface magnetism and unusual low temperature conductivity of RuO2 ... at very low temperatures the resistivity of RuO2 is extremely low, it is possibly the "best" normal metal, but the situation is complicated by the fact that results are difficult to reproduce. Possible explanations, based on electronic structure calculations will be discussed. http://www.eventure-online.com/eventure/publicAbstractView.do?id=204428 <http://www.eventure-online.com/eventure/publicAbstractView.do?id=204428&con gressId=6376> &congressId=6376 Is this interesting ?

