TY - JOUR
T1 - Synthesis and Properties of Triaminocyclopropenium Cation Based Ionic Liquids as Hypergolic Fluids
AU - Jin, Yunhe
AU - Wang, Binshen
AU - Zhang, Wenquan
AU - Huang, Shi
AU - Wang, Kangcai
AU - Qi, Xiujuan
AU - Zhang, Qinghua
N1 - Publisher Copyright:
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2018/3/26
Y1 - 2018/3/26
N2 - A novel family of hydrophobic triaminocyclopropenium cation based ionic liquids have been synthesized, and their structures and physicochemical properties characterized by NMR and IR spectroscopy, elemental analysis, differential scanning calorimetry, and hypergolic tests. The experimental results showed that all of these ionic liquids exhibited the expected hypergolic reactivity with the oxidizer white fuming nitric acid. Among them, the hypergolic ionic liquid based on the cyanoimidazolylborohydride anion showed excellent integrated properties, including high decomposition temperature (194 °C), high density (0.95 g cm−3), moderate viscosity (44 MPa s), ultrafast ignition delay time (6 ms), and high specific impulse (301.9 s); this demonstrates its potential as an environmentally friendly alternative to toxic hydrazine derivatives.
AB - A novel family of hydrophobic triaminocyclopropenium cation based ionic liquids have been synthesized, and their structures and physicochemical properties characterized by NMR and IR spectroscopy, elemental analysis, differential scanning calorimetry, and hypergolic tests. The experimental results showed that all of these ionic liquids exhibited the expected hypergolic reactivity with the oxidizer white fuming nitric acid. Among them, the hypergolic ionic liquid based on the cyanoimidazolylborohydride anion showed excellent integrated properties, including high decomposition temperature (194 °C), high density (0.95 g cm−3), moderate viscosity (44 MPa s), ultrafast ignition delay time (6 ms), and high specific impulse (301.9 s); this demonstrates its potential as an environmentally friendly alternative to toxic hydrazine derivatives.
KW - cations
KW - hypergolic fuels
KW - ionic liquids
KW - substituent effects
KW - thermochemistry
UR - http://www.scopus.com/inward/record.url?scp=85042529294&partnerID=8YFLogxK
U2 - 10.1002/chem.201705506
DO - 10.1002/chem.201705506
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C2 - 29369440
AN - SCOPUS:85042529294
SN - 0947-6539
VL - 24
SP - 4620
EP - 4627
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 18
ER -