http://www.photonics.com/content/news/2008/August/8/92805.aspx
"ITHACA, N.Y., Aug. 8, 2008 – The world’s thinnest balloon is just one atom thick. Developed by researchers at Cornell University, this balloon is made of a single layer of graphite and it is impermeable to even the tiniest airborne molecules, including helium. It has a range of applications in sensors, filters and imaging of materials at the atomic level."
One heck of an air-tight seal could be made. Impermeable for hydrogen gas as well, so it could be used as a liner for the hydrogen prior to freezing/liquid-fying it (if that is part of the fuel purification process. Just making wild guesses here, but they see quite a number of applications).
"ITHACA, N.Y., Aug. 8, 2008 – The world’s thinnest balloon is just one atom thick. Developed by researchers at Cornell University, this balloon is made of a single layer of graphite and it is impermeable to even the tiniest airborne molecules, including helium. It has a range of applications in sensors, filters and imaging of materials at the atomic level."
One heck of an air-tight seal could be made. Impermeable for hydrogen gas as well, so it could be used as a liner for the hydrogen prior to freezing/liquid-fying it (if that is part of the fuel purification process. Just making wild guesses here, but they see quite a number of applications).