Ammonia (NH3) Production from the Thermal Decomposition of Hydroxylammonium Nitrate (HAN) as a Green Energetic Source for Clean Space


Souagh A. Mabrouk A. Bachar A. Azat S. Amrousse R.
11 February 2025American Chemical Society

ACS Omega
2025#10Issue 54442 - 4448 pp.

Ammonia’s (NH3) high hydrogen concentration and simplicity of storage and transportation have made it a promising energy source, especially for hydrogen production. Using an iridium (Ir)-based catalyst for clean space applications, this study examines the release of NH3 during the thermal decomposition of hydroxylammonium nitrate (HAN), a green energetic propellant. Differential thermal analysis-thermogravimetry in conjunction with mass spectrometry (DTA-TG/MS) was used to examine the thermal decomposition. The generation of NH3 was verified by subsequent fragment analysis. Coupled cluster approaches were utilized to validate NH3 generation and to further clarify the reaction process. Combining the theoretical and experimental methods highlights the feasibility of employing HAN as a precursor for NH3 production, indicating that it can be used as a sustainable energy source for space propulsion systems. The effect of temperature on NH3 production using a coupled cluster is also explored.



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Faculty of Sciences, University of Chouaib Doukkali, El Jadida, 24000, Morocco
Faculty of Sciences and Techniques, Ibn Zohr University, Ait Melloul, 80000, Morocco
High School of Training and Education (ESEF), Ibn Zohr University, Agadir, 80000, Morocco
Stabayev University, Almaty, 050000, Kazakhstan

Faculty of Sciences
Faculty of Sciences and Techniques
High School of Training and Education (ESEF)
Stabayev University

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