مورد إلكتروني
Hypergolic Ignition of Ionic Liquids (Preprint)
| العنوان: | Hypergolic Ignition of Ionic Liquids (Preprint) |
|---|---|
| المؤلفون: | AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE, Chambreau, Steven D., Schneider, Stefan, Rosander, Michael, Hawkins, Tom, Gallegos, Christopher J., Pastewait, Matthew F., Vaghjiani, Ghanshyam L. |
| المصدر: | DTIC |
| بيانات النشر: | 2008-03-27 |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | A class of room temperature ionic liquids (RTILs) that exhibit hypergolic activity towards strong nitric acid is reported. Fast ignition of dicyanamide ionic liquids when mixed with nitric acid is contrasted with the reactivity of the ionic liquid azides, which show high reactivity with nitric acid, but do not ignite. The reactivity of other potential salt fuels is assessed here. Rapid-scan, Fourier Transform infrared (FTIR) spectroscopy of the pre-ignition phase indicates the evolution of N2O from both the dicyanamide and azide RTILs. Evidence for the evolution of CO2 and isocyanic acid (HNCO) with similar temporal behavior to N2O from reaction of the dicyanamide ionic liquids with nitric acid is presented. Evolution of HN3 is detected from the azides. No evolution of HCN from the dicyanamide reactions was detected. From the FTIR observations, biuret reaction tests and initial ab initio calculations, a mechanism is proposed for the formation of N2O, CO2 and HNCO from the dicyanamide reactions during pre-ignition. Submitted for publication in Physical Chemistry Chemical Physics. |
| مصطلحات الفهرس: | Combustion and Ignition, Fuels, Physical Chemistry, HYPERGOLIC FUELS, CYANAMIDES, ISOCYANIC ACID, HYPERGOLIC IGNITION, NITROUS OXIDE, AZIDES, CARBON DIOXIDE, NITRIC ACID, REACTIVITIES, INFRARED SPECTROSCOPY, FOURIER SPECTROSCOPY, IONIC LIQUIDS, RTILS(ROOM TEMPERATURE IONIC LIQUIDS), SALT FUELS, FTIR(FOURIER TRANSFORM INFRARED), FTIR SPECTROSCOPY, DICYANAMIDE, Text |
| URL: | |
| الإتاحة: | Open access content. Open access content Approved for public release; distribution is unlimited. |
| ملاحظة: | text/html English |
| أرقام أخرى: | DTICE ADA489584 832032932 |
| المصدر المساهم: | From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.ocn832032932 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |