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Hypergolic Zeolitic Imidazolate Frameworks (ZIFs) as Next-Generation Solid Fuels: Unlocking the Latent Energetic Behavior of ZIFs

preprint
submitted on 29.10.2018 and posted on 30.10.2018 by Tomislav Friscic, Hatem M. Titi, Mihails Arhangelskis, Dayaker Gandrath, Cristina Mottillo, Andrew Morris, Robin Rogers, Joseph Marrett, Giovanni Rachiero
We present the first strategy to induce hypergolic behavior, i.e. spontaneous ignition and combustion in contact with an external oxidizer, into metal-organic frameworks (MOFs). The strategy uses trigger acetylene or vinyl substituents to unlock the latent hypergolic properties of linkers in zeolitic imidazolate frameworks, illustrated here by six hypergolic MOFs of zinc, cobalt and cadmium. Varying the metal and linker enabled the modulation of ignition and combustion properties, leading to ultrashort ignition delays (down to 2 ms), on par with popular propellants, but without requiring highly energetic or carcinogenic hydrazine components found in conventional hypergols.

Funding

Air Force Office of Scientific Research, AFOSR Award No. FA9550-14-1-0306; NSERC RGPIN-2017-06467; NSERC SMFSU 507347-17; Canada Foundation for Innovation

History

Email Address of Submitting Author

tomislav.friscic@mcgill.ca

Institution

McGill University

Country

Canada

ORCID For Submitting Author

0000-0002-3921-7915

Declaration of Conflict of Interest

Authors declare no conflict of interest

Version Notes

This is version 1

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