Efficient synthesis of an aluminum amidoborane ammoniate

Yang, J.; Beaumont, P.; Humphries, Terry; Jensen, C.; Li, X.

doi:10.3390/en8099107

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Access Status

Open access

Authors

Yang, J.

Beaumont, P.

Humphries, Terry

Jensen, C.

Li, X.

Date

2015

Type

Journal Article

Metadata

Show full item record

Citation

Yang, J. and Beaumont, P. and Humphries, T. and Jensen, C. and Li, X. 2015. Efficient synthesis of an aluminum amidoborane ammoniate. Energies. 8 (9): pp. 9107-9116.

Source Title

Energies

DOI

10.3390/en8099107

School

Department of Physics and Astronomy

Remarks

This open access article is distributed under the Creative Commons license http://creativecommons.org/licenses/by/4.0/

URI

http://hdl.handle.net/20.500.11937/7897

Collection

Curtin Research Publications

Abstract

A novel species of metal amidoborane ammoniate, [Al(NH2BH3)6 3-][Al(NH3)6 3+] has been successfully synthesized in up to 95% via the one-step reaction of AlH3·OEt2 with liquid NH3BH3·nNH3 (n = 1~6) at 0 °C. This solution based reaction method provides an alternative pathway to the traditional mechano-chemical ball milling methods, avoiding possible decomposition. MAS 27Al NMR spectroscopy confirms the formulation of the compound as an Al(NH2BH3)6 3- complex anion and an Al(NH3)6 3+ cation. Initial dehydrogenation studies of this aluminum based M-N-B-H compound demonstrate that hydrogen is released at temperatures as low as 65 °C, totaling ~8.6 equivalents of H2 (10.3 wt %) upon heating to 105 °C. This method of synthesis offers a promising route towards the large scale production of metal amidoborane ammoniate moieties.