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CNR: Alamanacco della Scienza

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N. 16 - 12 ott 2011
ISSN 2037-4801

International info   a cura di Cecilia Migali

Tecnologia

A hydrogen reservoir made of... mostly hydrogen  

Scientists from the universities of Louvain-la-Neuve (Belgium), Aarhus (Denmark) and Geneva (Switzerland), along with the European Synchrotron Radiation Facility (Esrf) in Grenoble (France) have succeeded in crystallising a highly porous hydride that can take up even more gas and release this additional amount when needed, like a reservoir or a gas bottle.
This new form of magnesium borohydride stores 15 weight percent of hydrogen in the bulk material, representing an energy density equivalent to 50% of that of diesel fuel. In the pores, the material has the capability to store another 3 weight percents of H2, at low temperatures, which alone represent 5 times the energy density of a modern lithium-ion battery.
"This work opens a new field of chemistry. My vision is to design 'hybrid materials' with improved gas storage properties and controlled stability. This would be a revolution, not only for tomorrow's cars", says Yaroslav Filinchuk, the main author and researcher at Esrf
The results are published as an Early View Vip paper in Angewandte Chemie and highlighted by an inside cover page in the November 2011 issue.

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Fonte: Claus Habfast, European Synchrotron Radiation Facility (Esrf), tel. tel. + 33 666 662 384, email claus.habfast@esrf.fr