Program

Poster Presentations

Day 1, June 10（Wed.）　　Room P (5F 501+502)

1P-48

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Elucidation of Decomposition Mechanisms of Energetic Ionic Liquid Propellants by High-Resolution Time-of-Flight Mass Spectrometry

(¹Kanomax, ²Yokohama Natl. Univ.)
^oMakiko Furuishi¹, Nobuyuki Nakajima¹, Ryosuke Omori², Yu-ichiro Izato²

Mass spectrometry is a powerful tool for elucidating the decomposition and combustion mechanisms of energetic materials. In particular, high-resolution mass spectrometry (HRMS) enables unambiguous identification of key gaseous products whose nominal mass-to-charge ratios overlap, such as CO₂ and N₂O (m/z 44) or N₂ and CO (m/z 28). In this study, we apply HRMS to an ammonium dinitramide-based energetic ionic liquid (ADN based EILs) that is being considered as a green liquid propellant. To clarify the decomposition pathways of ADN based EILs in an electrochemical reaction field, gases generated at the cathode and anode were analyzed separately using an electrolysis cell coupled to HRMS. At both electrodes, the dominant gaseous product corresponded to m/z 44, which could be clearly assigned to N₂O by high-resolution mass analysis. Quantitative comparison of the ion signals revealed that N₂O formation at the cathode was approximately five times greater than at the anode.

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