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Selection of Ionic Liquids and Characterization of Hypergolicy with Hydrogen Peroxide

Lauck, Felix and Negri, Michele and Freudenmann, Dominic and Schlechtriem, S. (2020) Selection of Ionic Liquids and Characterization of Hypergolicy with Hydrogen Peroxide. International Journal of Energetic Materials and Chemical Propulsion, 19 (1), pp. 25-37. Begell House. DOI: 10.1615/IntJEnergeticMaterialsChemProp.2019028004 ISBN 2150-7678 ISSN 2150-766X

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Official URL: http://www.dl.begellhouse.com/journals/17bbb47e377ce023,3805d8e5795cd1a6,5fe2febd72bc397d.html

Abstract

A theoretical screening and experimental characterization of the hypergolicy of different ionic liquids in combination with highly concentrated hydrogen peroxide was conducted. The aim of the investigation was to find a possible alternative hypergolic bipropellant, which substitutes the commonly used hypergolic propellant combinations of hydrazines and dinitrogen tetraoxide. Highly concentrated hydrogen peroxide was chosen as green oxidizer, ionic liquids were chosen as alternative fuels. Ionic liquids offer very low vapor pressures compared to common fuels and this allows simplified handling procedures. The theoretical screening focused on commercially available ionic liquids. Criteria for the selection of ionic liquids included density, melting point, viscosity and theoretical performance calculations. By means of these results 1-butyl-3-methylimidazolium acetate (BMIM Ac) was chosen for further investigation. Pure BMIM Ac was tested with the so-called drop test method and did not show a hypergolic behavior with hydrogen peroxide. Hence catalytic transition metals like acetate salts were dissolved in the ionic liquid. With different concentrations of copper (II) acetate hypergolic ignition was archived. The ignition delay time is in the order of several 100 milliseconds.

Item URL in elib:https://elib.dlr.de/136810/
Document Type:Article
Title:Selection of Ionic Liquids and Characterization of Hypergolicy with Hydrogen Peroxide
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Lauck, FelixFelix.Lauck (at) dlr.dehttps://orcid.org/0000-0002-6599-0805
Negri, MicheleMichele.Negri (at) dlr.dehttps://orcid.org/0000-0003-2204-9916
Freudenmann, DominicDominic.Freudenmann (at) dlr.dehttps://orcid.org/0000-0003-4027-8878
Schlechtriem, S.Stefan.Schlechtriem (at) dlr.dehttps://orcid.org/0000-0002-3714-9664
Date:March 2020
Journal or Publication Title:International Journal of Energetic Materials and Chemical Propulsion
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:19
DOI :10.1615/IntJEnergeticMaterialsChemProp.2019028004
Page Range:pp. 25-37
Publisher:Begell House
ISSN:2150-766X
ISBN:2150-7678
Status:Published
Keywords:hydrogen peroxide, ionic liquids, hypergolic green propellant, catalytic fuel, 1-butyl-3-methylimidazolium acetate, BMIM Ac
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Wiederverwendbare Raumfahrtsysteme
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion
Deposited By: Lauck, Felix
Deposited On:22 Oct 2020 14:13
Last Modified:22 Oct 2020 14:13

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