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June 27, 2026Materials for Renewable and Sustainable EnergyOpen Access

Non-stoichiometric Mg-Ni composites for hydrogen storage: role of in-situ Mg2Ni formation in enhancing hydrogen sorption performance

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Authors

BSBabak O’. ShahrezaTallinn University of TechnologyJIJulia IvanisenkoKarlsruhe Institute of TechnologyFSFjodor SergejevTallinn University of Technology

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Overview

Randomized trial investigates hydrogen sorption performance in Mg-Ni composites, indicating the importance of in-situ synthesis.

Key Points

  • This work aims to analyze the effects of magnesium-nickel composites on hydrogen sorption performance and the role of in-situ Mg₂Ni formation.
  • Investigation of Mg-Ni composites with 2–16 at% Ni content
  • Powers consolidated by high-pressure torsion (HPT) and activated in a Sievert apparatus
  • Differential scanning calorimetry (DSC) used to track phase evolution and thermodynamic parameters.
  • In-situ synthesis of Mg₂Ni was promoted during thermal cycling under hydrogen.
  • Activation energy showed systematic reduction with increased Ni content.
  • HPT improved initial hydrogenation kinetics but did not significantly alter thermodynamic parameters.

Cite This Study

Shahreza et al. (2026) studied this question.

synapsesocial.com/papers/6a3f694caea7db3c1954017dhttps://doi.org/10.1007/s40243-026-00378-2
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