A new potassium-based intermediate and its role in the desorption properties of the K–Mg–N–H system

A. Santoru; S. Garroni; C. Pistidda; C. Milanese; A. Girella; A. Marini; E. Masolo; A. Valentoni; N. Bergemann; T. T. Le; H. Cao; D. Haase; O. Balmes; K. Taube; G. Mulas; S. Enzo; T. Klassen; M. Dornheim

doi:10.1039/C5CP06963G

A new potassium-based intermediate and its role in the desorption properties of the K–Mg–N–H system†

A. Santoru,*^a S. Garroni,^b C. Pistidda,^a C. Milanese,^c A. Girella,^c A. Marini,^c E. Masolo,^b A. Valentoni,^b N. Bergemann,^a T. T. Le,^a H. Cao,^a D. Haase,^d O. Balmes,^d K. Taube,^a G. Mulas,^b S. Enzo,^b T. Klassen^a and M. Dornheim^a

Author affiliations

* Corresponding authors

^a Institute of Materials Research, Materials Technology, Helmholtz-Zentrum Geesthacht GmbH, Max-Planck Strasse 1, D-21502 Geesthacht, Schleswig-Holstein, Germany
E-mail: antonio.santoru@hzg.de

^b Department of Chemistry and Pharmacy, INSTM, Via Vienna 2, I-07100 Sassari, Italy

^c Pavia H2 Lab, Department of Chemistry, Physical Chemistry Section, University of Pavia, VialeTaramelli 16, I-27100 Pavia, Italy

^d MAX IV Laboratory, Lund University, Römers väg 1, 22363 Lund, Sweden

Abstract

New insights into the reaction pathways of different potassium/magnesium amide–hydride based systems are discussed. In situ SR-PXD experiments were for the first time performed in order to reveal the evolution of the phases connected with the hydrogen releasing processes. Evidence of a new K–N–H intermediate is shown and discussed with particular focus on structural modification. Based on these results, a new reaction mechanism of amide–hydride anionic exchange is proposed.

Physical Chemistry Chemical Physics

A new potassium-based intermediate and its role in the desorption properties of the K–Mg–N–H system†

Abstract

Supplementary files

Article information

Download Citation

Permissions

A new potassium-based intermediate and its role in the desorption properties of the K–Mg–N–H system

Social activity

Search articles by author

Spotlight

Advertisements