High hydrogen-adsorption-rate material based on graphane decorated with alkali metals

  • Liubov Yu Antipina
  • , Pavel V. Avramov
  • , Seiji Sakai
  • , Hiroshi Naramoto
  • , Manabu Ohtomo
  • , Shiro Entani
  • , Yoshihiro Matsumoto
  • , Pavel B. Sorokin

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

The graphane with chemically bonded alkali metals (Li, Na, K) was considered as potential material for hydrogen storage. The ab initio calculations show that such material can adsorb as many as four hydrogen molecules per Li, Na, and K metal atom. These values correspond to 12.20, 10.33, and 8.56 wt% of hydrogen, respectively, and exceed the DOE requirements. The thermodynamic analysis shows that Li-graphane complex is the most promising for hydrogen storage with ability to adsorb three hydrogen molecules per metal atom at 300 K and pressure in the range of 5-250 atm.

Original languageEnglish
Article number085435
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume86
Issue number8
DOIs
StatePublished - 20 Aug 2012

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