| http://www.w3.org/ns/prov#value | - Inclusion compounds can also be used for the storage of gases such as hydrogen or methane, with two highly advantageous features, first, that the stored gas can go in and out of the solid very rapidly if the layers are separated by an appropriate included material, and second, that the included material may be chosen to form a complex with the gas to be stored (e.g. form a hydride if hydrogen is t
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