摘要 |
<p>Gases may be maintained in compact form, e.g. at energy densities comparable to that of gasoline in the case of fuel gases such as hydrogen, methane or natural gas, by storage in a relatively motion-arrested state between the exfoliated laminae of exfoliated laminar crystalline structures, e.g. exfoliated hexagonal crystalline structures such as graphite or boron nitride.</p> |