Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 13, Issue 15, Pages 1932-1940Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201800705
Keywords
borohydrides; energy; ionic liquids; nitrogen heterocycles; propellants
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Funding
- National Key Research and Development Program of China [2016YFB0600903]
- National Natural Science Foundation of China [21576270, 21676281]
- Fund of State Key Laboratory of Multiphase Complex Systems, IPE, CAS [MPCS-2015-A-05]
- Key Program of National Natural Science Foundation of China [91434203]
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[Bis(imidazolyl)-BH2](+)[bis(triazolyl)-BH2](-) and [bis(imidazolyl)-BH2](+)[tris(triazolyl)-BH](-) were synthesized, the cations and anions of which were functionalized with B-H groups and azoles. As B-H groups contribute to the hypergolic activity and azole groups improve the energy output, the resulting ionic liquids exhibited ignition delay times as low as 20 ms and energy outputs as high as 461.1 kJ mol(-1). In addition, densities (1.07-1.22 gcm(-3)) and density-specific impulse (approximate to 360 sgcm(-3)) values reached a relatively high level. These ionic liquids show great promise as sustainable rocket fuels.
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