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MgH2 by Gas Phase Condensation: Nanostructure Morphology and Hydrogen Sorption Behaviour

Published online by Cambridge University Press:  01 February 2011

Ennio Bonetti
Affiliation:
ennio.bonetti@unibo.it, Università di Bologna, Department of Physics, viale Berti Pichat 6/2, Bologna, 40127, Italy
Elsa Callini
Affiliation:
elsa.callini@studio.unibo.it, Universita' di Bologna and CNISM, Department of Physics, viale Berti Pichat 6/2, Bologna, 40127, Italy
Amelia Montone
Affiliation:
montone@casaccia.enea.it, ENEA, FIM Department, C.R. Casaccia C.P. 2400, Rome, 00123, Italy
Luca Pasquini
Affiliation:
luca.pasquini@unibo.it, Universita' di Bologna and CNISM, Department of Physics, viale Berti Pichat 6/2, Bologna, 40127, Italy
Emanuela Piscopiello
Affiliation:
emanuela.piscopiello@brindisi.enea.it, ENEA, C.R. Brindisi, via Appia km 706, Brindisi, 72100, Italy
Marco Vittori Antisari
Affiliation:
vittori@casaccia.enea.it, ENEA, FIM Department, C.R. Casaccia C.P. 2400, Rome, 00123, Italy
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Abstract

Inert gas condensation was employed to prepare nanoparticles of Mg and MgH2 which morphology, clustering degree and structural stability have been investigated by X-ray diffraction and electron microscopy. Thermodynamic functional properties of the Mg and MgH2 nanostructured samples were investigated by high pressure differential scanning calorimetry. Some specific features of the morphology of the samples prepared by inert gas condensation are compared with powders obtained by ball milling through desorption kinetics behavior.

Keywords

Type
Research Article
Copyright
Copyright © Materials Research Society 2008

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