Accession Number:

AD1036959

Title:

Ionic Liquid Fuels for Chemical Propulsion

Descriptive Note:

Technical Report,01 Oct 2013,30 Sep 2014

Corporate Author:

AIR FORCE RESEARCH LAB EDWARDS AFB CA EDWARDS AFB United States

Personal Author(s):

• Schneider, Stefan

Report Date:

2014-11-20

Pagination or Media Count:

27.0

Abstract:

Task I Our proposed research for this task focuses on three distinct first year objectives with second- and third-year priorities dependent upon results from the first year1. Investigate the reaction of ABH with varying amounts of NCBH3- and determine the composition of the mixtures.2. Prepare pure heterocyclic-BH4 salts and investigate their reactions with ABH.3. Design and synthesize amine-functionalized IL cations suitable to form stable coordination compounds with metal borohydrides. Task II In order to understand the unusual phenomenon of hypergolicity in energy dense materials, a detailed understanding of the reactive intermediate chemistry is required. Towards these ends, the following objectives are pursued1. Identify pre-ignition mechanisms and heterogeneous reactivity of next generation ionic liquid IL hypergols by infrared spectroscopy.2. Determination of ionic liquid vaporization and reaction mechanisms by tunable VUV spectroscopy.3. Determination of ionic liquid hypergolic ignition delay model parameters and reaction pathways via chemical kinetics measurements and molecular dynamics simulations.

Descriptors:

• ionic liquids
• chemical reactions
• salts
• MIXTURES
• cations
• borohydrides
• ignition lag
• hypergolic ignition
• infrared spectroscopy
• chemical kinetics
• vaporization
• molecular dynamics simulations

Subject Categories:

• Liquid Rocket Propellants
• Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE