Ionic liquids as hypergolic fuels

被引:293
|
作者
Schneider, Stefan [1 ]
Hawkins, Tommy [1 ]
Rosander, Michael [1 ]
Vaghjiani, Ghanshyam [1 ]
Chambreau, Steven [1 ]
Drake, Gregory [2 ]
机构
[1] USAF, Res Lab, Edwards AFB, CA 93524 USA
[2] USA, Aviat & Missile Res Dev & Engn Ctr, Prop & Struct Directorate, AMSRD AMR PS PT, Redstone Arsenal, AL 35898 USA
关键词
D O I
10.1021/ef800286b
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Currently, the ionic liquids (IL) is gaining attention as energetic materials for propellant applications. It is desirable to achieve ignition by means of a hypergolic reaction. Hydrazine and its methylated derivatives are still the state-of-the-art fuels for bipropellant, however, they are carcinogenic vapor toxins. For these reasons, hydrazine has been replaced by ILs, which are regarded as paragons of environmental friendliness, green chemistry, and low vapor toxicity. However, in the first ignition tests carried out with ILs containing fuel-rich azide anions did not disclose any hypergolic properties. Thus, other fuel-rich anions have been investigated, especially the dicyanamide anion. As a result of the investigation, the structure analysis revealed an extensive hydrogen-bond network involving the dicyanamide anion. With the discovery of these ILs hypergols, it is expected that it can now be fine-tuned for energy content, performance, and desirable physical properties and could replace state-of-the-art, highly toxic hydrazine and its derivatives.
引用
收藏
页码:2871 / 2872
页数:2
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