Except for some work with elements under pressure. I think I remember reading that if we could create hydrogen as a solid, it would be a superconductor.
From the same wikipedia article: "Theoretical work by Neil Ashcroft predicted that liquid metallic hydrogen at extremely high pressure should become superconducting at approximately room-temperature because of its extremely high speed of sound and expected strong coupling between the conduction electrons and the lattice vibrations.[33] This prediction is yet to be experimentally verified."
http://en.wikipedia.org/wiki/High-temperature_superconductiv...