Laser-induced fluorescence detection of nitroxyl (HNO) formed from the thermal decomposition of hydroxylammonium nitrate vapor
The decomposition of the ionic liquid hydroxylammonium nitrate (HAN) produces gas phase products which have utility in spacecraft propulsion systems. Among the various gas phase species generated from HAN decomposition is the nitroxyl (HNO) radical, a highly reactive molecule with implications in bo...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-06-01
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| Series: | Journal of Ionic Liquids |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772422024000077 |
| _version_ | 1797287599262400512 |
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| author | Nicholas R. Taylor Kristina M. Lemmer |
| author_facet | Nicholas R. Taylor Kristina M. Lemmer |
| author_sort | Nicholas R. Taylor |
| collection | DOAJ |
| description | The decomposition of the ionic liquid hydroxylammonium nitrate (HAN) produces gas phase products which have utility in spacecraft propulsion systems. Among the various gas phase species generated from HAN decomposition is the nitroxyl (HNO) radical, a highly reactive molecule with implications in both chemical and electric propulsion applications. The work described here used a laser-induced fluorescence platform to directly detect the relative density of the HNO radical formed by passing HAN vapor through heated porous disks of varying composition. The use of heated porous 316-stainless steel and aluminum disks showed significant HNO density production and is attributed to a surface hydrogen abstraction mechanism. There was also evidence of surface modification to the metal disks which resulted in a shift in the HNO density temperature profiles. The results reported demonstrate that use of a heated porous material can easily generate a molecular vapor at moderate temperatures for combustion and electric propulsion applications. |
| first_indexed | 2024-03-07T18:35:40Z |
| format | Article |
| id | doaj.art-d9a6068e3d5f486690f8445d797d03a2 |
| institution | Directory Open Access Journal |
| issn | 2772-4220 |
| language | English |
| last_indexed | 2024-03-07T18:35:40Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Ionic Liquids |
| spelling | doaj.art-d9a6068e3d5f486690f8445d797d03a22024-03-02T04:55:24ZengElsevierJournal of Ionic Liquids2772-42202024-06-0141100084Laser-induced fluorescence detection of nitroxyl (HNO) formed from the thermal decomposition of hydroxylammonium nitrate vaporNicholas R. Taylor0Kristina M. Lemmer1Corresponding author.; Mechanical and Aerospace Engineering Department, Western Michigan University, 4601 Campus Drive, Kalamazoo, MI 49008, United StatesMechanical and Aerospace Engineering Department, Western Michigan University, 4601 Campus Drive, Kalamazoo, MI 49008, United StatesThe decomposition of the ionic liquid hydroxylammonium nitrate (HAN) produces gas phase products which have utility in spacecraft propulsion systems. Among the various gas phase species generated from HAN decomposition is the nitroxyl (HNO) radical, a highly reactive molecule with implications in both chemical and electric propulsion applications. The work described here used a laser-induced fluorescence platform to directly detect the relative density of the HNO radical formed by passing HAN vapor through heated porous disks of varying composition. The use of heated porous 316-stainless steel and aluminum disks showed significant HNO density production and is attributed to a surface hydrogen abstraction mechanism. There was also evidence of surface modification to the metal disks which resulted in a shift in the HNO density temperature profiles. The results reported demonstrate that use of a heated porous material can easily generate a molecular vapor at moderate temperatures for combustion and electric propulsion applications.http://www.sciencedirect.com/science/article/pii/S2772422024000077Hydroxylammonium nitrateNitroxyl radical (HNO)DecompositionLaser-induced fluorescence spectroscopy |
| spellingShingle | Nicholas R. Taylor Kristina M. Lemmer Laser-induced fluorescence detection of nitroxyl (HNO) formed from the thermal decomposition of hydroxylammonium nitrate vapor Journal of Ionic Liquids Hydroxylammonium nitrate Nitroxyl radical (HNO) Decomposition Laser-induced fluorescence spectroscopy |
| title | Laser-induced fluorescence detection of nitroxyl (HNO) formed from the thermal decomposition of hydroxylammonium nitrate vapor |
| title_full | Laser-induced fluorescence detection of nitroxyl (HNO) formed from the thermal decomposition of hydroxylammonium nitrate vapor |
| title_fullStr | Laser-induced fluorescence detection of nitroxyl (HNO) formed from the thermal decomposition of hydroxylammonium nitrate vapor |
| title_full_unstemmed | Laser-induced fluorescence detection of nitroxyl (HNO) formed from the thermal decomposition of hydroxylammonium nitrate vapor |
| title_short | Laser-induced fluorescence detection of nitroxyl (HNO) formed from the thermal decomposition of hydroxylammonium nitrate vapor |
| title_sort | laser induced fluorescence detection of nitroxyl hno formed from the thermal decomposition of hydroxylammonium nitrate vapor |
| topic | Hydroxylammonium nitrate Nitroxyl radical (HNO) Decomposition Laser-induced fluorescence spectroscopy |
| url | http://www.sciencedirect.com/science/article/pii/S2772422024000077 |
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