Hydrogenation properties and mechanical stability of pellets made starting from compressed ball-milled MgH2 powders mixed with catalysts (Nb2O5 and graphite) and a binding agent (aluminium powder) have been investigated. Structural characterization with X-ray diffraction and gas–solid reaction kinetic and thermodynamic tests with a Sievert’s apparatus have been done on the samples up to 50 hydrogen absorption/desorption (a/d) cycles. The best cycling behaviour and mechanical strength stability have been observed for pellets of catalysed MgH2 powders added with 5 wt% aluminium annealed in vacuum at 450 C before starting the a/d cycles. This mechanical stability to cycles has been attributed to the formation of a solid solution of aluminium in magnesium.
Pellets of MgH2-based Composites as Practical Material for Solid State Hydrogen Storage / A., Khandelwal; F., Agresti; G., Capurso; S., Lo Russo; A., Maddalena; Gialanella, Stefano; G., Pricipi. - In: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. - ISSN 0360-3199. - STAMPA. - 35(2010), pp. 3565-3571.
Titolo: | Pellets of MgH2-based Composites as Practical Material for Solid State Hydrogen Storage |
Autori: | A., Khandelwal; F., Agresti; G., Capurso; S., Lo Russo; A., Maddalena; Gialanella, Stefano; G., Pricipi |
Autori Unitn: | |
Titolo del periodico: | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY |
Anno di pubblicazione: | 2010 |
Codice identificativo Scopus: | 2-s2.0-77950299978 |
Codice identificativo ISI: | WOS:000277463600045 |
Handle: | http://hdl.handle.net/11572/89641 |
Citazione: | Pellets of MgH2-based Composites as Practical Material for Solid State Hydrogen Storage / A., Khandelwal; F., Agresti; G., Capurso; S., Lo Russo; A., Maddalena; Gialanella, Stefano; G., Pricipi. - In: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. - ISSN 0360-3199. - STAMPA. - 35(2010), pp. 3565-3571. |
Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
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