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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:56 |
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Conference: Bucharest University Faculty of Physics 2006 Meeting
Section: Polymer Physics
Title:
Nanostructures - an alternative for hydrogen storage in solid materials
Authors:
G. M. Stoian, L.M. Constantinescu, I. Stamatin
Affiliation:
Physics Department, University of Bucharest
E-mail
gratiela_monica_stoian@yahoo.com
Keywords:
nanostructures, hydrogen storage, adsorption
Abstract:
Hydrogen is regenerative and environment friendly and it has the highest heating value of all chemical fuels. For mobile and stationary applications, the most important characteristics are the volumetric and gravimetric density of hydrogen in a storage material. Hydrogen can be stored by six different methods and phenomena: high pressure gas cylinders, liquid hydrogen in cryogenic tanks (at 21 K), adsorbed hydrogen on materials with a large specific surface area (at T< 100 K), absorbed on interstitial sites in a host metal (at ambient pressure and room temperature), chemically bond in covalent and ionic compounds (at ambient pressure), or by oxidation of reactive metals e.g. Li, Na, Mg, Al, Zn with water. The various hydrogen storage systems are reviewed and compared and new tendencies in material science regarding hydrogen storage nanomaterials will be outlined.
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