In-situ catalyzation approach for enhancing the hydrogenation/dehydrogenation kinetics of MgH₂ powders with Ni particles.

ABSTRACT: One practical solution for utilizing hydrogen in vehicles with proton-exchange fuel cells membranes is storing hydrogen in metal hydrides nanocrystalline powders. According to its high hydrogen capacity and low cost of production, magnesium hydride (MgH₂) is a desired hydrogen storage system. Its slow hydrogenation/dehydrogenation kinetics and high thermal stability are the major barriers restricting its usage in real applications. Amongst the several methods used for enhancing the kinetics behaviors of MgH₂ powders, mechanically milling the powders with one or more catalyst species has shown obvious advantages. Here we are proposing a new approach for gradual doping MgH₂ powders with Ni particles upon ball milling the powders with Ni-balls milling media. T

SUBMITTER: El-Eskandarany MS 

PROVIDER: S-EPMC5110972 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature