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A multidisciplinary team of French researchers has invented technology that enables hydrogen to be stored in a solid state, more specifically in the form of discs the size of a 33-rpm vinyl record. A promising source of energy, hydrogen is usually stored in gaseous or liquid form, which takes up a lot of space and requires an extremely energy-intensive process. More practical, more sustainable and safer, this new technique, which uses an atomic structure based on magnesium hydride and expanded graphite, does not present any risk of ignition when heated.


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