Ternary Amides Containing Transition Metals for Hydrogen Storage: A Case Study with Alkali Metal Amidozincates

ChemSusChem. 2015 Nov;8(22):3777-82. doi: 10.1002/cssc.201500990. Epub 2015 Oct 14.

Abstract

The alkali metal amidozincates Li4 [Zn(NH2)4](NH2)2 and K2[Zn(NH2)4] were, to the best of our knowledge, studied for the first time as hydrogen storage media. Compared with the LiNH2-2 LiH system, both Li4 [Zn(NH2)4](NH2)2-12 LiH and K2[Zn(NH2)4]-8 LiH systems showed improved rehydrogenation performance, especially K2[Zn(NH2)4]-8 LiH, which can be fully hydrogenated within 30 s at approximately 230 °C. The absorption properties are stable upon cycling. This work shows that ternary amides containing transition metals have great potential as hydrogen storage materials.

Keywords: hydrides; hydrogen storage; sorption kinetics; ternary amides; transition metals.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amides / chemistry*
  • Hydrogen / chemistry*
  • Metals, Alkali / chemistry*
  • Temperature
  • Transition Elements / chemistry*
  • Zinc / chemistry*

Substances

  • Amides
  • Metals, Alkali
  • Transition Elements
  • Hydrogen
  • Zinc