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Hypergolic fuels based on water-stable borohydride cluster anions with ultralow ignition delay times

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Abstract

In bipropulsion systems, hypergolic ionic liquids with B–H groups, as promising alternatives to toxic hydrazine-based fuels, can improve propulsion performance. A series of borohydride cluster-based salts with excellent hydrolytic and thermal stabilities (Td > 200 °C), and the highest density (1.18 g cm−3) of any known borohydride hypergolic ionic liquids were prepared. Upon contact with white fuming nitric acid or N2O4, these new salts have ultra-fast ignition delay times (as low as 1 ms), which is a superior ignition performance. Theoretical studies were employed in order to understand their high stability and good ignition performance.

Graphical abstract: Hypergolic fuels based on water-stable borohydride cluster anions with ultralow ignition delay times

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Publication details

The article was received on 10 May 2017, accepted on 12 Jun 2017 and first published on 12 Jun 2017


Article type: Communication
DOI: 10.1039/C7TA04038E
Citation: J. Mater. Chem. A, 2017, Advance Article
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    Hypergolic fuels based on water-stable borohydride cluster anions with ultralow ignition delay times

    N. Jiao, Y. Zhang, L. Liu, J. M. Shreeve and S. Zhang, J. Mater. Chem. A, 2017, Advance Article , DOI: 10.1039/C7TA04038E

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