Of interest…
In a 2014 paper, Holmlid says: “Ultra-dense hydrogen H(-1) is a quantum material and the first material which is superfluid and superconductive at room temperature. This has been shown in detail for the deuterium form D(-1).” Comment: As a RTSC, the dense material H(-1) will be subject to the Meissner effect. If it is created on a ferromagnetic catalyst which has permanent or applied magnetic field, which is possible to accomplish with iron oxide as the fill, then H(-1) should be repelled as soon as it is made. The H(-1) can made within a translucent alumina tube filled with Shell 105 and hydrogen, using photons shining into the tube, so as to create SPP on the interfacial ID surface of the tube. The H(-1) should slowly migrate into the walls of the alumina. This should happen as soon as it is formed due to Meissner repulsion. Laser light should be avoided in favor of diffuse monochromatic light during the fuel build-up stage. It would be beneficial to cool the tube as much as possible at this stage, possibly using a cold plate. The alumina matrix would be effectively porous to H(-1) at only a few picometers in diameter. This is concievably an effective way to make and store the H(-1) for later use.

