Effect of additives, ball milling and isotopic exchange in porous magnesium borohydride.

ABSTRACT: Magnesium borohydride (Mg(BH₄)₂) is a promising material for solid state hydrogen storage. However, the predicted reversible hydrogen sorption properties at moderate temperatures have not been reached due to sluggish hydrogen sorption kinetics. Hydrogen (H) → deuterium (D) exchange experiments can contribute to the understanding of the stability of the BH₄ ^- anion. Pure γ-Mg(BH₄)₂, ball milled Mg(BH₄)₂ and composites with the additives nickel triboride (Ni₃B) and diniobium pentaoxide (Nb₂O₅) have been investigated. In situ Raman analysis demonstrated that in pure γ-Mg(BH₄)₂ the isotopic exchange reaction during continuous heating started at ∼

SUBMITTER: Heere M 

PROVIDER: S-EPMC9083490 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature