Chemical Kinetics Interpretation of Hypergolicity of Ionic Liquid-Based Systems

摘要

This report results from a contract tasking Centre National de la Recherche Scientifique as follows: The prospect of hypergolically igniting Ionic Liquids (ILs) requires a detailed understanding of the underlying chemical pathways and the reaction mechanisms involved when ILs are treated with NTO or any suitable oxidizer (RFNA, WFNA). The potential to develop hypergolic ignition as a suitable option for space propulsion applications requires gas-phase thermodynamic and chemical kinetic data. The contractor will investigate and accomplish the following: - A bibiliography - An estimation of thermodynamic properties (gas-phase standard enthalpy of formation at 298.15 K, gas-phase standard Cp in the 300-5000 K range, gas-phase standard entropy in the 300-5000 K) of the reactants, products and intermediates needed to simulate the hypergolic ignition/combustion of ILs-based systems (to be defined), - Writing of the corresponding detailed chemical kinetic models (one for both ignition and combustion), - Calculation or estimation of rate constant if no experimental data are available.