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Hydrogen-storage properties of MgH2–10Ni–2NaAlH4–2Ti–2CNT milled in a planetary ball mill under H2

Authors
Journal
Journal of Industrial and Engineering Chemistry
1226-086X
Publisher
Elsevier
Publication Date
Volume
19
Issue
6
Identifiers
DOI: 10.1016/j.jiec.2013.03.004
Keywords
  • Starting Material Mgh2
  • Ni
  • Naalh4
  • Ti
  • And Cnt Addition
  • Reactive Mechanical Grinding
  • Activation
  • Mg2Ni Formation

Abstract

Abstract A sample with a composition of 84wt% MgH2–10wt% Ni–2wt% NaAlH4–2wt% Ti–2wt% CNT (named MgH2–10Ni–2NaAlH4–2Ti–2CNT) was prepared by milling in a planetary ball mill under H2. Activation of the sample was not required. At the first cycle, the sample absorbed 3.75wt% H for 10min, and 4.17wt% H for 60min at 593K under 12bar H2. Reactive mechanical grinding of Mg with Ni, NaAlH4, Ti, and CNT is thought to create defects on the surface and in the interior of Mg, as well as to reduce Mg particle size.

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