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

Hujun Cao; Theresia M M Richter; Claudio Pistidda; Anna-Lisa Chaudhary; Antonio Santoru; Gökhan Gizer; Rainer Niewa; Ping Chen; Thomas Klassen; Martin Dornheim

doi:10.1002/cssc.201500990

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.

Authors

Affiliations

¹ Institute of Materials Research, Materials Technology, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, Geesthacht, 21502, Germany), Fax. [email protected].
² Institute of Inorganic Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany.
³ Institute of Materials Research, Materials Technology, Helmholtz-Zentrum Geesthacht, Max-Planck-Straße 1, Geesthacht, 21502, Germany), Fax.
⁴ Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China.

PMID: 26463124
DOI: 10.1002/cssc.201500990

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