High pressure hydrogen storage where a portion of the hydrogen gas is diverted to act as a coolant gas

https://techxplore.com/news/2026-03-hydrogen-coolant-gas-metal-hydride.html

"metal hydride compressors generate significant heat during absorption phase, slowing process/ reducing efficiency, but cooling using external water/ air-cooling jackets add bulk, complexity, weight... overcome circulating diverted hydrogen through metal hydride bed for much more rapid heat exchange... quicker cooling, significantly shortening full compression cycle time... 10 bar inlet pressure compressed to >450 bar in single stage, maintaining high purity... compact, lightweight, no moving parts, less maintenance"

Related: Bursting the barrier: catalysts unlock hydrogen from magnesium hydride
https://www.eurekalert.org/news-releases/1125291