Researchers discover new material to 'trap and store volatile gases

https://phys.org/news/2023-02-material-volatile-gases.html

"hydrogen and natural gas and medicinal (e.g., oxygen and nitric oxide) gases... have empty space, but they are not interconnected by pores... less energy intensive and safer... sorbent expands when exposed to gases with very little structural rearrangement; captures increasingly large quantities of gas as pressure increased... reversible and recyclable"

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