Title: Hydrogen Storage in 2NaBH4 + MgH2 Mixtures: Destabilization by additives and nanoconfinement
Authors: MULAS GabrieleCAMPESI RENATOGARRONI SebastianoNAPOLITANO EmilioMILANESE ChiaraDOLCI FRANCESCOPELLICER EvaBARO' Maria-DoloresMARINI Andrea
Citation: JOURNAL OF ALLOYS AND COMPOUNDS vol. 536S p. S236-S240
Publisher: ELSEVIER SCIENCE SA
Publication Year: 2012
JRC N°: JRC70423
ISSN: 0925-8388
URI: http://www.sciencedirect.com/science/article/pii/S0925838811023127
http://publications.jrc.ec.europa.eu/repository/handle/JRC70423
DOI: 10.1016/j.jallcom.2011.12.042
Type: Articles in Journals
Abstract: We focus on the H2 desorption properties of the 2NaBH4 + MgH2 system destabilized by different methods. Nanostructured powder mixtures were prepared by ball milling the starting hydrides and nanoconfined reactive composites were obtained by melting infiltration of the hydrides into a Si-based SBA-15 support. NbF5 was tested as catalyst in both the preparations. Structural characterization by X Ray Diffraction and Transmission Electron Microscopy allowed evaluating the successful synthesis of SBA15 matrix, the microstructural features of ball milled and nanoconfined hydrides as well as the success of infiltration process. The evaluation of the sorption properties, by manometric Sievert-type apparatus and thermal desorption spectroscopy, revealed the efficiency of the hydride destabilization, obtained by the different routes, in decreasing the hydrogen release temperature and improving desorption kinetics.
JRC Institute:Institute for Energy and Transport

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