Article | REF: IN170 V1

Large-scale hydrogen storage in magnesium hydride

Authors: Patricia DE RANGO, Daniel FRUCHART, Philippe MARTY

Publication date: November 10, 2013, Review date: April 1, 2024

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2. Technical description of the innovation

2.1 Nanostructured magnesium hydride

Magnesium hydride MgH 2 , with its quadratic rutile-type structure , is one of the lightest reversible hydrides, with a mass capacity of 7.6%, corresponding to an energy density of 2.4 kWh/kg. Magnesium is also abundant, inexpensive, recyclable and biocompatible. It is therefore a material of choice for reversible hydrogen storage at moderate pressure. However, magnesium has two disadvantages which we had to overcome: hydrogen absorption and desorption kinetics...

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Technical description of the innovation