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Hypergolic Triggers as Cocrystal Formers: Cocrystallization for Creating New Hypergolic Materials with Tunable Energy Content

submitted on 13.06.2019, 23:49 and posted on 18.06.2019, 15:14 by Hatem M. Titi, Mihails Arhangelskis, Giovanni Rachiero, Tomislav Friscic, Robin Rogers
We demonstrate a cocrystal-based strategy to create new solid hypergols, i.e. materials exhibiting spontaneous ignition in contact with an oxidant, in which the energy content and density of the material can be changed without affecting the ignition delay. Using an imidazole-substituted decaborane as a hypergolic "trigger" component, in combination with energy-rich but non-hypergolic nitrobenzene, provides a hypergolic cocrystal with an ultrashort ignition delay, composed of hypergolic and fuel-containing domains.


AFOSR Award No. FA9550-14-1-0306

NSERC Discovery Grant RGPIN-2017-06467

NSERC E. W. R. Steacie Memorial Fellowship NSERC SMSFU 507347-17


Email Address of Submitting Author


McGill University



ORCID For Submitting Author


Declaration of Conflict of Interest

H. M. Titi, R. D. Rogers, T. Friščić are inventors on provisional patent application US 62/860,479 (date 12 June 2019) related to this work.

Version Notes

This is version 1.