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Ionics

, Volume 25, Issue 6, pp 2701–2709 | Cite as

Electrochemical hydrogenation of Mg76Li12Al12 solid solution phase

  • Volodymyr PavlyukEmail author
  • Wojciech Ciesielski
  • Nazar Pavlyuk
  • Damian Kulawik
  • Malgorzata Szyrej
  • Beata Rozdzynska-Kielbik
  • Vasyl Kordan
Original Paper
  • 87 Downloads

Abstract

The electrochemical hydrogenation of Mg-based solid solution phase with Mg76Li12Al12 composition was studied by various electrochemical methods. The Mg76Li12Al12Hx (0 < x < 74) hydride has a hexagonal crystal structure (P-6m2, a = 3.1485(1), c = 5.1111(2) Å) in which the hydrogen atoms insert to octahedral voids. The reversible hydrogen storage capacity of these compounds reached 3.2 wt% H, corresponding to 865 mAh/g. After final charging/discharging cycles, the initial Mg76Li12Al12 solid solution phase was recovered, indicating that the electrochemical reactions are reversible. These observations are confirmed by X-ray powder diffraction (XRPD) method and scanning electron microscopy (SEM).

Keywords

Alloys Batteries Electrochemistry of materials Solid state electrochemistry 

Notes

Funding information

Financial support from the National Science Centre, Poland (no. 2017/25/B/ST8/02179) is gratefully acknowledged.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Volodymyr Pavlyuk
    • 1
    • 2
    Email author
  • Wojciech Ciesielski
    • 2
  • Nazar Pavlyuk
    • 1
  • Damian Kulawik
    • 2
  • Malgorzata Szyrej
    • 2
  • Beata Rozdzynska-Kielbik
    • 2
  • Vasyl Kordan
    • 1
  1. 1.Institute of Chemistry, Environmental Protection and BiotechnologyCzęstochowa Jan Długosz UniversityCzęstochowaPoland
  2. 2.Department of Inorganic ChemistryIvan Franko Lviv National UniversityLvivUkraine

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