Experimental and theoretical characterization of the 3d-dopants bias on the H desorption of Mg hydrides

F. Cleri, M. Celino, A. Montone, E. Bonetti, L. Pasquini

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9 Citations (Scopus)

Abstract

Extensive electronic structure calculations, based on the density-functional theory, are used to characterize the equilibrium properties and the behaviour under pressure of MgH2. Moreover, substitutional solid solutions for several 3d metals (Fe, Ni, Ti, Al, Pd, Co, etc.) in MgH2 are characterized by computing both relaxed structures and solution energies. Theoretical results are combined with experimental results on samples synthesized by ball milling. MgH2 was milled with 10 wt.% of 3d metals followed by microstructural characterization and hydrogen desorption behaviour. Good correlation between theoretical solution energies and experimental desorption temperatures reveals a general trend in these systems. A few notable exceptions can be detected, which can be explained in terms of peculiarities in the experimental composite microstructure.
Original languageEnglish
Publication statusPublished - 2007
Event8th Conference of the Yugoslav Materials Research Society - , Serbia
Duration: 1 Jan 2007 → …

Conference

Conference8th Conference of the Yugoslav Materials Research Society
CountrySerbia
Period1/1/07 → …

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Cleri, F., Celino, M., Montone, A., Bonetti, E., & Pasquini, L. (2007). Experimental and theoretical characterization of the 3d-dopants bias on the H desorption of Mg hydrides. Paper presented at 8th Conference of the Yugoslav Materials Research Society, Serbia.