Rational Design and Facile Synthesis of Boranophosphate Ionic Liquids as Hypergolic Rocket Fuels

Chemistry : a European Journal
Tianlin LiuQinghua Zhang

Abstract

The design and synthesis of new hypergolic ionic liquids (HILs) as replacements for toxic hydrazine derivatives have been the focus of current academic research in the field of liquid bipropellant fuels. In most cases, however, the requirements of excellent ignition performances, good hydrolytic stabilities, and low synthetic costs are often contradictory, which makes the development of high-performance HILs an enormous challenge. Here, we show how a fuel-rich boranophosphate ion was rationally designed and used to synthesize a series of high-performance HILs with excellent comprehensive properties. In the design strategy, we introduced the {BH3 } moiety into the boranophosphate ion for improving the self-ignition property, whereas the complexation of boron and phosphite was used to improve the hydrolytic activity of the borohydride species. As a result, these boranophosphate HILs exhibited wide liquid operating ranges (>220 °C), high densities (1.00-1.10 g cm-3 ), good hydrolytic stabilities, and short ignition delay times (2.3-9.7 milliseconds) with white fuming nitric acid (WFNA) as the oxidizer. More importantly, these boranophosphate HILs could be readily prepared in high yields from commercial phosphite esters, avoiding c...Continue Reading

References

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Mar 7, 2009·Angewandte Chemie·Haixiang GaoJean'ne M Shreeve
Feb 24, 2010·Inorganic Chemistry·Young-Hyuk JooJean'ne M Shreeve
Apr 15, 2010·Chemistry : a European Journal·Ling HeJean'ne M Shreeve
Sep 17, 2011·Angewandte Chemie·Yanqiang ZhangJean'ne M Shreeve
Apr 6, 2013·Journal of the American Chemical Society·Subhadeep RoyMarvin H Caruthers
Apr 17, 2014·Chemistry : a European Journal·Qinghua ZhangJean'ne M Shreeve
Aug 1, 2015·Chemistry : a European Journal·Deepak ChandJean'ne M Shreeve
Dec 22, 2015·Chemical Communications : Chem Comm·Tianlin LiuQinghua Zhang
Feb 28, 2017·Chemical Reviews·Binshen WangGuohua Gao
Jun 6, 2017·Chemistry : a European Journal·Yi WangQinghua Zhang
Jan 26, 2018·Chemistry : a European Journal·Yunhe JinQinghua Zhang

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Citations

Apr 13, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Zhi WangQinghua Zhang
Feb 15, 2019·The Journal of Physical Chemistry. B·Martin BrehmDaniel Sebastiani
Mar 28, 2020·The Journal of Physical Chemistry. a·Yunhe JinQinghua Zhang
Jun 26, 2020·Journal of the American Chemical Society·Qian-You WangThomas C W Mak

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