Herein, the concept of novel hypergolic pairs for the enhanced ignition performance of hypergolic propellants is proposed. The proposed hypergolic combinations comprised ionic liquid fuels, namely, 1-ethyl-3-methyl-imidazolium-thiocyanate (EMIM SCN) and 1-butyl-3-methyl-imidazolium-thiocyanate (BMIM SCN), and hydrogen peroxide (H₂O₂) with oxidizing additives. LiNO₃ and NH₄NO₃ were used as oxidizing additives, which were dissolved in 60–95 wt% H₂O₂ to enhance the physical properties and ignition performance. Adding the oxidizing additives decreased the theoretical performance of the hypergolic pairs, however, the presence of oxidizing additives drastically reduced the freezing point of the mixture with 95 wt% H₂O₂. Particularly, an abrupt change was observed in the freezing point of the mixture with the LiNO₃ additive. At only 5 wt% LiNO₃, the freezing point reached −30 °C. The ignition performance of the novel hypergolic pairs was significantly enhanced by the introduction of oxidizing additives. In the drop test, the LiNO₃ additive exerted a substantially greater effect on the enhancement of ignition performance than that exerted by NH₄NO₃. Furthermore, this positive contribution was maximized with the decrease in the hydrogen peroxide concentration. Although the addition of NH₄NO₃ to 90 and 95 wt% H₂O₂ adversely affected the ignition performance, the combination of BMIM SCN and 60 wt% H₂O₂–containing LiNO₃ extended the hypergolicity limit. This study is the first attempt to introduce nitrate salts as oxidizing additives in hydrogen peroxide with ionic fuels, including SCN anions. Nitrate salts exhibit potential to serve as additives that can be used with hydrogen peroxide to enhance the properties of oxidizers. The nitrate salt usage helps lower the freezing point of oxidizers. Further, it shortens the ignition delay time of the hypergolic pairs.

在此，提出了用于增强自燃推进剂点火性能的新型自燃对的概念。所提出的自燃组合包括离子液体燃料，即 1-乙基-3-甲基-咪唑-硫氰酸盐 (EMIM SCN) 和 1-丁基-3-甲基-咪唑-硫氰酸盐 (BMIM SCN)，以及过氧化氢 (H ₂ O ₂）含氧化添加剂。LiNO ₃和 NH ₄ NO ₃用作氧化添加剂，溶解在 60-95 wt% H ₂ O _2中以提高物理性能和点火性能。添加氧化添加剂降低了自燃对的理论性能，然而，氧化添加剂的存在大大降低了具有 95 wt% H ₂ O ₂的混合物的凝固点。_{特别地，观察到与LiNO 3}添加剂的混合物的冰点突然变化。在仅 5 wt% LiNO ₃下，凝固点达到-30 °C。通过引入氧化添加剂，新型自燃对的点火性能显着增强。在跌落试验中，LiNO ₃添加剂对点火性能的增强作用明显大于NH _{4添加剂。}没有₃。此外，这种积极贡献随着过氧化氢浓度的降低而最大化。尽管在90 和 95 wt% H ₂ O _{2中添加 NH 4} NO ₃对点火性能产生不利影响，但 BMIM SCN 和 60 wt% H ₂ O ₂的组合LiNO ₃扩展了自发性极限。本研究首次尝试将硝酸盐作为过氧化氢中的氧化添加剂与离子燃料（包括 SCN 阴离子）一起引入。硝酸盐具有作为添加剂的潜力，可与过氧化氢一起使用以增强氧化剂的性能。硝酸盐的使用有助于降低氧化剂的冰点。此外，它缩短了自燃对的点火延迟时间。