Enhanced decomposition of laminated ammonium perchlorate composite

Abstract In order to improve the thermal decomposition performances of ammonium perchlorate (AP), the laminated AP composite was prepared by ice-template induced self-assembly method. In this study, Iron-Konjac glucomannan (Fe3+-KGM) hydrosol rich in AP was selected as the freezing precursor. Throug...

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Autores principales:	Shuji Wang, Xueyong Guo, Wanjun Zhao, Hua Fang, Chengcheng Wu, Di Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/46dd48c96d7e4408acac7805b04a98d9
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spelling	oai:doaj.org-article:46dd48c96d7e4408acac7805b04a98d92021-11-21T12:19:15ZEnhanced decomposition of laminated ammonium perchlorate composite10.1038/s41598-021-01994-w2045-2322https://doaj.org/article/46dd48c96d7e4408acac7805b04a98d92021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01994-whttps://doaj.org/toc/2045-2322Abstract In order to improve the thermal decomposition performances of ammonium perchlorate (AP), the laminated AP composite was prepared by ice-template induced self-assembly method. In this study, Iron-Konjac glucomannan (Fe3+-KGM) hydrosol rich in AP was selected as the freezing precursor. Through directional freezing of precursor and recrystallization of AP molecules, the laminated AP composite was obtained. The results showed that the thickness of the lamellar composite structure is about 10 to 30 μm, and the recrystallized AP particles are uniformly dispersed in the gel system. The oxygen bomb test results show that the micro-/nano-layered structure can significantly improve the sample’s combustion heat value. Thermal analyses indicated that with the increasing Fe3+ content, the peak exothermic temperature of lamellar AP composite at different heating rates both showed a decreasing trend. With 10 wt% Fe(NO3)3·9H2O added, the decomposition peak temperature decreased from 433.0 to 336.2 °C at a heating rate of 5 °C/min, and the apparent activation energy (E a ) decreased dramatically from 334.1 kJ/mol to 255.4 kJ/mol. A possible catalytic thermal decomposition mechanism of lamellar AP composite catalyzed by Fe3+ was proposed. This work is beneficial to the structural design of other energetic materials.Shuji WangXueyong GuoWanjun ZhaoHua FangChengcheng WuDi WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shuji Wang Xueyong Guo Wanjun Zhao Hua Fang Chengcheng Wu Di Wang Enhanced decomposition of laminated ammonium perchlorate composite
description	Abstract In order to improve the thermal decomposition performances of ammonium perchlorate (AP), the laminated AP composite was prepared by ice-template induced self-assembly method. In this study, Iron-Konjac glucomannan (Fe3+-KGM) hydrosol rich in AP was selected as the freezing precursor. Through directional freezing of precursor and recrystallization of AP molecules, the laminated AP composite was obtained. The results showed that the thickness of the lamellar composite structure is about 10 to 30 μm, and the recrystallized AP particles are uniformly dispersed in the gel system. The oxygen bomb test results show that the micro-/nano-layered structure can significantly improve the sample’s combustion heat value. Thermal analyses indicated that with the increasing Fe3+ content, the peak exothermic temperature of lamellar AP composite at different heating rates both showed a decreasing trend. With 10 wt% Fe(NO3)3·9H2O added, the decomposition peak temperature decreased from 433.0 to 336.2 °C at a heating rate of 5 °C/min, and the apparent activation energy (E a ) decreased dramatically from 334.1 kJ/mol to 255.4 kJ/mol. A possible catalytic thermal decomposition mechanism of lamellar AP composite catalyzed by Fe3+ was proposed. This work is beneficial to the structural design of other energetic materials.
format	article
author	Shuji Wang Xueyong Guo Wanjun Zhao Hua Fang Chengcheng Wu Di Wang
author_facet	Shuji Wang Xueyong Guo Wanjun Zhao Hua Fang Chengcheng Wu Di Wang
author_sort	Shuji Wang
title	Enhanced decomposition of laminated ammonium perchlorate composite
title_short	Enhanced decomposition of laminated ammonium perchlorate composite
title_full	Enhanced decomposition of laminated ammonium perchlorate composite
title_fullStr	Enhanced decomposition of laminated ammonium perchlorate composite
title_full_unstemmed	Enhanced decomposition of laminated ammonium perchlorate composite
title_sort	enhanced decomposition of laminated ammonium perchlorate composite
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/46dd48c96d7e4408acac7805b04a98d9
work_keys_str_mv	AT shujiwang enhanceddecompositionoflaminatedammoniumperchloratecomposite AT xueyongguo enhanceddecompositionoflaminatedammoniumperchloratecomposite AT wanjunzhao enhanceddecompositionoflaminatedammoniumperchloratecomposite AT huafang enhanceddecompositionoflaminatedammoniumperchloratecomposite AT chengchengwu enhanceddecompositionoflaminatedammoniumperchloratecomposite AT diwang enhanceddecompositionoflaminatedammoniumperchloratecomposite
_version_	1718419060889223168

Enhanced decomposition of laminated ammonium perchlorate composite

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