@inproceedings{e9467d5266224abaad452ac791adc722,
title = "Hydroxylammonium nitrate species in a monopropellant electrospray plume",
abstract = "A mixture of 1-ethyl-3-methylimidazolium ethyl sulfate ([Emim][EtSO4]) and hydroxylammonium nitrate (HAN) is an energetic monopropellant potentially suitable in a multi-mode chemical-electric microtube-electrospray micropropulsion system. In this work, electrospray plume mass spectra are compared between the monopropellant mixture and neat [Emim][EtSO4]. This comparison clearly indicates new and additional species present in the plume due to the addition of HAN. Mass spectra from 20-600 amu/q were obtained over a variety of angles and flow rates from 2 pL/sec to 3 nL/sec in both cation and anion extraction modes. Mass spectrum dependence on flow rate and angular orientation agree qualitatively well with literature. Results indicate the presence of HAN-based species in anion mode, but no HAN-based species in cation mode. Three of the four monomer species from the monopropellant are apparent in the plume; [Emim]+, [EtSO4]-, and [NO3]- are observed, while [HA]+ is noticeably absent. Results also show emission of both protontransferred covalent forms of HAN: [HA-H] and [HNO3]. Swapping of anion and cation species between the constituents of the monopropellant mixture is also observed.",
author = "Wainwright, {Mitchell J.} and Rovey, {Joshua L.} and Miller, {Shawn W.} and Prince, {Benjamin D.} and Berg, {Steven P.}",
note = "Publisher Copyright: {\textcopyright} 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.; AIAA Propulsion and Energy Forum and Exposition, 2019 ; Conference date: 19-08-2019 Through 22-08-2019",
year = "2019",
doi = "10.2514/6.2019-3899",
language = "English (US)",
isbn = "9781624105906",
series = "AIAA Propulsion and Energy Forum and Exposition, 2019",
publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",
booktitle = "AIAA Propulsion and Energy Forum and Exposition, 2019",
}