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Insight into the decomposition pathway of the complex hydride Al3Li4(BH4)13

Lindemann, Inge and Borgschulte, Andreas and Callini, Elsa and Züttel, Andreas and Schultz, Ludwig and Gutfleisch, Oliver (2013):
Insight into the decomposition pathway of the complex hydride Al3Li4(BH4)13.
38, In: International Journal of Hydrogen Energy, (6), Elsevier Science Publishing, pp. 2790-2795, ISSN 03603199, [Online-Edition: http://dx.doi.org/10.1016/j.ijhydene.2012.12.012],
[Article]

Abstract

The decomposition pathway of the complex hydride Al3Li4(BH4)13 is in the focus of this study. Initially the compound attracted great interest due to its high H2 capacity (17.2 wt.%) and desorption at moderate temperatures (<100 °C). This work sheds light on its decomposition reaction by a unique experimental setup of thermogravimetry combined with spectroscopic gas phase analysis (FT-IR and MS) at ambient conditions. It is observed that the compound itself is metastable and decomposes immediately into its components, solid LiBH4 and Al(BH4)3 which is monitored in the gas phase. Carbon addition decreases the observed mass loss and the spectroscopic gas phase analysis is used to learn about the impact of carbon addition.

Item Type: Article
Erschienen: 2013
Creators: Lindemann, Inge and Borgschulte, Andreas and Callini, Elsa and Züttel, Andreas and Schultz, Ludwig and Gutfleisch, Oliver
Title: Insight into the decomposition pathway of the complex hydride Al3Li4(BH4)13
Language: English
Abstract:

The decomposition pathway of the complex hydride Al3Li4(BH4)13 is in the focus of this study. Initially the compound attracted great interest due to its high H2 capacity (17.2 wt.%) and desorption at moderate temperatures (<100 °C). This work sheds light on its decomposition reaction by a unique experimental setup of thermogravimetry combined with spectroscopic gas phase analysis (FT-IR and MS) at ambient conditions. It is observed that the compound itself is metastable and decomposes immediately into its components, solid LiBH4 and Al(BH4)3 which is monitored in the gas phase. Carbon addition decreases the observed mass loss and the spectroscopic gas phase analysis is used to learn about the impact of carbon addition.

Journal or Publication Title: International Journal of Hydrogen Energy
Volume: 38
Number: 6
Publisher: Elsevier Science Publishing
Uncontrolled Keywords: Complex hydride, Desorption, Hydrogen storage, Spectroscopy, Thermogravimetry
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Functional Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 26 Apr 2013 07:16
Official URL: http://dx.doi.org/10.1016/j.ijhydene.2012.12.012
Identification Number: doi:10.1016/j.ijhydene.2012.12.012
Funders: This research was supported by the European Union and the Free State of Saxony (SAB Grant-Nr. 100112628) as well as the NaNiBo project, in the framework of the Swiss Nanotera initiative.
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