“Tandem-action” ferrocenyl iodocuprates promoting low temperature hypergolic ignitions of “green” EIL–H2O2 bipropellants
“Tandem-action” ferrocenyl iodocuprates promoting low temperature hypergolic ignitions of “green” EIL–H2O2 bipropellants
复制标题
– 串联作用 – 二茂铁碘铜酸盐促进 – green – EIL – H2O2 双组元推进剂的低温自燃点火
DOI：
10.1039/d0ta04620e
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发表时间：
2020
影响因子：
11.9
通讯作者：
Qinghua Zhang
中科院分区：
文献类型：
--
作者：
Kangcai Wang;Tianlin Liu;Yunhe Jin;Shi Huang;Natan Petrutik;Daniel Shem-Tov;Qi-Long Yan;Michael Gozin;Qinghua Zhang
高能离子液体(EIL)“绿色”燃料与高能过氧化氢(>；90%H_2O_2；HTP)相结合，作为一种“绿色”氧化剂，是开发用于空间探索的全“绿色”双推进剂的一个非常有前途的平台。本工作合成了两个新的“串联作用”促进剂[FcCH2N(CH3)3+]2[Cu2I42−](P1)和[FcCH2N(CH3)3+]n[Cu2I3−]n(P2)，以及两个参考的“单作用”促进剂[FcCH2N(CH3)3+][H3BCN−](P3)和[CH3N(CH2CH3)3+]n[Cu2I3−]n(P4)。这些促进剂在典型的EIL燃料-1-乙基-3-甲基咪唑二氰胺(F1)中表现出高的溶解性和长期的化学稳定性。通过对促进剂-EIL配方的筛选，发现1-乙基-3-甲基咪唑氰基硼氢化物(F2)燃料和促进剂P2(10wt%)与过氧化氢(95%)的组合的ID时间最好，为31ms，而F2/P2配方的商品过氧化氢(70%)的ID时间为58ms。值得注意的是，后一种配方即使在−40°C时也保持完全均匀，并且在此温度下与过氧化氢(95%)的ID时间为66ms，表明我们的方法在开发新型完全“绿色”双推进剂方面的优势。
The combination of Energetic Ionic Liquid (EIL) “green” fuels and high test peroxide (>90% H2O2; HTP), as a “green” oxidizer, is a very promising platform for the development of fully “green” bipropellants for space exploration. In this work, two new “tandem-action” promoters – [FcCH2N(CH3)3+]2[Cu2I42−] (P1) and [FcCH2N(CH3)3+]n[Cu2I3−]n (P2) – and two reference “single-action” promoters, [FcCH2N(CH3)3+][H3BCN−] (P3) and [CH3N(CH2CH3)3+]n[Cu2I3−]n (P4), were prepared, comprehensively characterized and evaluated for their ability to significantly shorten the Ignition Delay (ID) times of hypergolic reactions between a series of EILs and H2O2. These promoters exhibited high solubility and long-term chemical stability in a typical EIL fuel – 1-ethyl-3-methylimidazolium dicyanamide (F1). Upon screening the performance of promoter–EIL formulations, the best ID result of 31 ms was observed for the combination of 1-ethyl-3-methylimidazolium cyanoborohydride (F2) fuel and promoter P2 (10 wt%), with H2O2 (95%), whereas an ID time of 58 ms was observed for the F2/P2 formulation with commercially available H2O2 (70%), respectively. Remarkably, the latter formulation remained fully homogeneous even at −40 °C, and showed an ID time of 66 ms at this temperature with H2O2 (95%), indicating the advantages of our approach for the development of novel fully “green” bipropellants.