Effect of nanostructured ferrites MFe₂ O₄ (M = Cu, Co, Mg, Zn) on the thermal decomposition of ammonium nitrate

Autores
Cabrera, Alejandra Fabiana; Rodríguez Torres, Claudia Elena; Juncal, Luciana Celeste; Meyer, Marcos; Stewart, Silvana Jacqueline
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Ammonium nitrate (NH₄ NO₃) represents a cheap, chlorine-free alternative to ammonium perchlorate for use as an oxidant for solid propellants. But its poor ignitability and low burning rate are all disadvantages to achieve such purposes. For this reason, it is necessary to carry out studies to improve its combustion characteristics, seeking to combine it with catalysts or fuels. The present work explores the possibility of improving its combustion characteristics by adding ferrites as catalysts. Nanostructured ferrites MFe₂ O 4 (M = Mg, Co, Cu, and Zn) synthesized by autocombustion method were tested as catalysts for the thermal decomposition reaction of ammonium nitrate under open, partially open or sealed conditions. The ferrites were characterized by XRD, SEM, UV-vis spectrophotometry and Mössbauer spectroscopy. All the MFe₂ O₄ samples are single phased with a cubic spinel structure and average sizes, L, ranging from about 9 (CoFe₂ O₄) to 25 nm (CuFe₂ O₄). The catalytic effect of MFe₂ O₄ on the thermal decomposition of NH 4 NO 3 was investigated by thermogravimetric analysis and differential scanning calorimetry techniques. The process was also followed in a volumetric Sieverts type apparatus. The results indicate that only under sealed conditions the addition of these ferrites has influence in the decomposition process of AN. The incorporation of any of these ferrites decreases the onset temperature of the process manifested itself through an exothermic reaction, and also increases the amount of heat released in the reaction. The Co-ferrite showed the best efficiency causing the onset temperature to drop around 60 °C. The catalytic performance is correlated with the electronegativity of M 2 + cations, which act as Lewis acid sites that interact with the gas molecules.
Instituto de Física La Plata
Materia
Física
Ammonium nitrate
Solid propellants
Spinel ferrites
Nanoparticle catalysts
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/159780

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spelling Effect of nanostructured ferrites MFe₂ O₄ (M = Cu, Co, Mg, Zn) on the thermal decomposition of ammonium nitrateCabrera, Alejandra FabianaRodríguez Torres, Claudia ElenaJuncal, Luciana CelesteMeyer, MarcosStewart, Silvana JacquelineFísicaAmmonium nitrateSolid propellantsSpinel ferritesNanoparticle catalystsAmmonium nitrate (NH₄ NO₃) represents a cheap, chlorine-free alternative to ammonium perchlorate for use as an oxidant for solid propellants. But its poor ignitability and low burning rate are all disadvantages to achieve such purposes. For this reason, it is necessary to carry out studies to improve its combustion characteristics, seeking to combine it with catalysts or fuels. The present work explores the possibility of improving its combustion characteristics by adding ferrites as catalysts. Nanostructured ferrites MFe₂ O 4 (M = Mg, Co, Cu, and Zn) synthesized by autocombustion method were tested as catalysts for the thermal decomposition reaction of ammonium nitrate under open, partially open or sealed conditions. The ferrites were characterized by XRD, SEM, UV-vis spectrophotometry and Mössbauer spectroscopy. All the MFe₂ O₄ samples are single phased with a cubic spinel structure and average sizes, L, ranging from about 9 (CoFe₂ O₄) to 25 nm (CuFe₂ O₄). The catalytic effect of MFe₂ O₄ on the thermal decomposition of NH 4 NO 3 was investigated by thermogravimetric analysis and differential scanning calorimetry techniques. The process was also followed in a volumetric Sieverts type apparatus. The results indicate that only under sealed conditions the addition of these ferrites has influence in the decomposition process of AN. The incorporation of any of these ferrites decreases the onset temperature of the process manifested itself through an exothermic reaction, and also increases the amount of heat released in the reaction. The Co-ferrite showed the best efficiency causing the onset temperature to drop around 60 °C. The catalytic performance is correlated with the electronegativity of M 2 + cations, which act as Lewis acid sites that interact with the gas molecules.Instituto de Física La Plata2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/159780enginfo:eu-repo/semantics/altIdentifier/issn/2666-352Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaecs.2021.100026info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:41:46Zoai:sedici.unlp.edu.ar:10915/159780Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:41:46.808SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Effect of nanostructured ferrites MFe₂ O₄ (M = Cu, Co, Mg, Zn) on the thermal decomposition of ammonium nitrate
title Effect of nanostructured ferrites MFe₂ O₄ (M = Cu, Co, Mg, Zn) on the thermal decomposition of ammonium nitrate
spellingShingle Effect of nanostructured ferrites MFe₂ O₄ (M = Cu, Co, Mg, Zn) on the thermal decomposition of ammonium nitrate
Cabrera, Alejandra Fabiana
Física
Ammonium nitrate
Solid propellants
Spinel ferrites
Nanoparticle catalysts
title_short Effect of nanostructured ferrites MFe₂ O₄ (M = Cu, Co, Mg, Zn) on the thermal decomposition of ammonium nitrate
title_full Effect of nanostructured ferrites MFe₂ O₄ (M = Cu, Co, Mg, Zn) on the thermal decomposition of ammonium nitrate
title_fullStr Effect of nanostructured ferrites MFe₂ O₄ (M = Cu, Co, Mg, Zn) on the thermal decomposition of ammonium nitrate
title_full_unstemmed Effect of nanostructured ferrites MFe₂ O₄ (M = Cu, Co, Mg, Zn) on the thermal decomposition of ammonium nitrate
title_sort Effect of nanostructured ferrites MFe₂ O₄ (M = Cu, Co, Mg, Zn) on the thermal decomposition of ammonium nitrate
dc.creator.none.fl_str_mv Cabrera, Alejandra Fabiana
Rodríguez Torres, Claudia Elena
Juncal, Luciana Celeste
Meyer, Marcos
Stewart, Silvana Jacqueline
author Cabrera, Alejandra Fabiana
author_facet Cabrera, Alejandra Fabiana
Rodríguez Torres, Claudia Elena
Juncal, Luciana Celeste
Meyer, Marcos
Stewart, Silvana Jacqueline
author_role author
author2 Rodríguez Torres, Claudia Elena
Juncal, Luciana Celeste
Meyer, Marcos
Stewart, Silvana Jacqueline
author2_role author
author
author
author
dc.subject.none.fl_str_mv Física
Ammonium nitrate
Solid propellants
Spinel ferrites
Nanoparticle catalysts
topic Física
Ammonium nitrate
Solid propellants
Spinel ferrites
Nanoparticle catalysts
dc.description.none.fl_txt_mv Ammonium nitrate (NH₄ NO₃) represents a cheap, chlorine-free alternative to ammonium perchlorate for use as an oxidant for solid propellants. But its poor ignitability and low burning rate are all disadvantages to achieve such purposes. For this reason, it is necessary to carry out studies to improve its combustion characteristics, seeking to combine it with catalysts or fuels. The present work explores the possibility of improving its combustion characteristics by adding ferrites as catalysts. Nanostructured ferrites MFe₂ O 4 (M = Mg, Co, Cu, and Zn) synthesized by autocombustion method were tested as catalysts for the thermal decomposition reaction of ammonium nitrate under open, partially open or sealed conditions. The ferrites were characterized by XRD, SEM, UV-vis spectrophotometry and Mössbauer spectroscopy. All the MFe₂ O₄ samples are single phased with a cubic spinel structure and average sizes, L, ranging from about 9 (CoFe₂ O₄) to 25 nm (CuFe₂ O₄). The catalytic effect of MFe₂ O₄ on the thermal decomposition of NH 4 NO 3 was investigated by thermogravimetric analysis and differential scanning calorimetry techniques. The process was also followed in a volumetric Sieverts type apparatus. The results indicate that only under sealed conditions the addition of these ferrites has influence in the decomposition process of AN. The incorporation of any of these ferrites decreases the onset temperature of the process manifested itself through an exothermic reaction, and also increases the amount of heat released in the reaction. The Co-ferrite showed the best efficiency causing the onset temperature to drop around 60 °C. The catalytic performance is correlated with the electronegativity of M 2 + cations, which act as Lewis acid sites that interact with the gas molecules.
Instituto de Física La Plata
description Ammonium nitrate (NH₄ NO₃) represents a cheap, chlorine-free alternative to ammonium perchlorate for use as an oxidant for solid propellants. But its poor ignitability and low burning rate are all disadvantages to achieve such purposes. For this reason, it is necessary to carry out studies to improve its combustion characteristics, seeking to combine it with catalysts or fuels. The present work explores the possibility of improving its combustion characteristics by adding ferrites as catalysts. Nanostructured ferrites MFe₂ O 4 (M = Mg, Co, Cu, and Zn) synthesized by autocombustion method were tested as catalysts for the thermal decomposition reaction of ammonium nitrate under open, partially open or sealed conditions. The ferrites were characterized by XRD, SEM, UV-vis spectrophotometry and Mössbauer spectroscopy. All the MFe₂ O₄ samples are single phased with a cubic spinel structure and average sizes, L, ranging from about 9 (CoFe₂ O₄) to 25 nm (CuFe₂ O₄). The catalytic effect of MFe₂ O₄ on the thermal decomposition of NH 4 NO 3 was investigated by thermogravimetric analysis and differential scanning calorimetry techniques. The process was also followed in a volumetric Sieverts type apparatus. The results indicate that only under sealed conditions the addition of these ferrites has influence in the decomposition process of AN. The incorporation of any of these ferrites decreases the onset temperature of the process manifested itself through an exothermic reaction, and also increases the amount of heat released in the reaction. The Co-ferrite showed the best efficiency causing the onset temperature to drop around 60 °C. The catalytic performance is correlated with the electronegativity of M 2 + cations, which act as Lewis acid sites that interact with the gas molecules.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/159780
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dc.language.none.fl_str_mv eng
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dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2666-352X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaecs.2021.100026
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
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rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
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