A new material for hydrogen storage, ScAl0.8Mg0.2

TL;DR

This paper introduces ScAl0.8Mg0.2, a novel aluminium-rich alloy with enhanced hydrogen storage capacity, kinetics, and stability, validated through experimental and computational analyses, promising advancements in hydrogen storage technology.

Contribution

The study reports the discovery and detailed characterization of a new alloy, ScAl0.8Mg0.2, with superior hydrogen storage properties compared to existing materials.

Findings

Superior hydrogen storage capacity and kinetics

Enhanced stability against air oxidation

Good agreement between experimental and computational results

Abstract

A novel aluminium rich alloy for hydrogen storage has been discovered, ScAl0.8Mg0.2, which has superior properties regarding hydrogen storage capacity, kinetics and stability towards air oxidation in comparison to hydrogen absorption in state-of-the-art intermetallic compounds. Detailed analysis of the hydrogen absorption in ScAl0.8Mg0.2 has been performed using in situ synchrotron radiation powder X-ray diffraction, neutron powder diffraction and quantum mechanical calculations. The results from calculations and experiments are in good agreement with each other.