| abstract |
The present invention relates to a composition capable of hydrogen sorption in a closed container at low pressure, comprising an unsaturated organic substance and a hydrogenation catalyst. Said unsaturated organic substance is a compound having general formula A or A', or a dimer or polymer thereof, or a copolymer wherein one of the structural units has the general formula A or A':wherein R<1>, R<2 >and R<3 >are hydrogen or hydrocarbon moieties optionally comprising one or more heteroatoms, at least one among R<1>, R<2 >and R<3 >being chosen in the group of alkenyl, alkynyl, arylalkenyl and arylalkynyl moieties, optionally comprising one or more heteroatoms. |