Graphene's proton permeability: A switch for future energy technologies

https://phys.org/news/2023-11-graphene-proton-permeability-future-energy.html

"graphene illuminated with light, excites electrons which then interact with protons, accelerating their transport through material... Pauli blocking in proton transport is an unusual electronic property of graphene, never observed in proton transport. In essence, it is possible to raise the energy of electrons in graphene to such an extent that graphene no longer absorbs light, and hence the blocking... hydrogen fuel cells and solar water splitting"