Stabilized super-thermite colloids: A new generation of advanced highly energetic materials

Elbasuney, Sherif; Zaky, M. Gaber; Radwan, Mostafa A.; Mostafa, Sherif

doi:10.1016/j.apsusc.2017.05.051

Cited by 48 publications

(7 citation statements)

References 42 publications

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“…Schematic for continuous hydrothermal synthesis is provided ( Figure S1). Further details about hydrothermal synthesis can be found in the following references [5,22,24]. Nano-oxide particles were flocculated from their synthesis medium and re-dispersed in organic solvent with aluminium nanoparticles.…”

Section: Synthesis Of Mno2 Nanoparticlesmentioning

confidence: 99%

“…Enhanced dispersion characteristics could be accomplished via integration of dispersed particles into energetic matrix [5,25]. Stoichiometric binary mixture of MnO2/Al nanoparticles was re-dispersed into acetone; consequently NC was dissolved in acetone colloid.…”

Section: Development Of Nc Nanocompositementioning

confidence: 99%

“…Nanothermite (metal oxide/metal) can act as efficient high energy dense material, with high volumetric energy density compared with common explosives. Nanothermites can experience reaction rate 100 times compared with conventional counterparts [4][5][6]. Much research has been directed to the development of nanothermites for initiation means, propulsion, micro-actuator, and electric match compositions [4,[7][8].…”

Section: Introductionmentioning

confidence: 99%

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Nitrocellulose Catalyzed With Manganese Oxide Nanoparticles: Advanced Energetic Nanocomposite With Superior Decomposition Kinetics

Elbasuney

Yehia

Saadoune

et al. 2021

Preprint

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Nanostructured energetic materials can fit with advanced energetic first-fire, and electric bridges (microchips). Manganese oxide, with active surface sites (negatively charged surface oxygen, and hydroxyl groups) can experience superior catalytic activity. Manganese oxide could boost decomposition enthalpy, ignitability, and propagation rate. Furthermore manganese oxide could induce vigorous thermite reaction with aluminium particles. Hot solid or liquid particles are desirable for first-fire compositions. This study reports on the facile fabrication of MnO2 nanoparticles of 10 nm average particle size; aluminium nanoplates of 100 nm average particle size were employed. Nitrocellulose (NC) was adopted as energetic polymeric binder. MnO2/Al particles were integrated into NC matrix via co-precipitation technique. Nanothermite particles offered an increase in NC decomposition enthalpy by 150 % using DSC; ignition temperature was decreased by 8 0C. Nanothemrite particles offered enhanced propagation index by 261 %. Kinetic study demonstrated that nanothermite particles experienced drastic decrease in NC activation energy by - 42, and - 40 KJ mol-1 using Kissinger and KAS models respectively. This study shaded the light on novel nanostructured energetic composition, with superior combustion enthalpy, propagation rate, and activation energy.

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Section: Synthesis Of Mno2 Nanoparticlesmentioning

confidence: 99%

Section: Development Of Nc Nanocompositementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nitrocellulose Catalyzed With Manganese Oxide Nanoparticles: Advanced Energetic Nanocomposite With Superior Decomposition Kinetics

Elbasuney

Yehia

Saadoune

et al. 2021

Preprint

Self Cite

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“…2. Consequently, the highly increase in the surface energy causes improvement of the contact area and mixing homogeneity [14]. Fig.…”

Section: Figmentioning

confidence: 99%

Investigation of a novel nanothermite colloid based on CuO coated CNTs on the thermo-analytical characteristics of 1,3,5-trinitro-1,3,5-triazinane

Elbeih

2021

Preprint

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Nanothermite colloid is a promising field of research used to enhance the characteristics of energetic materials. In this study, pre-treated surfaces of multiwall-carbon nanotubes (MWCNTs) were catalysed to help the deposition of a metal and the coating process by copper (Cu) nanoscale layer through electroless deposition. The formed hybrids coated by Cu were treated at 250°C to form MWCNTs coated by CuO. Isopropyl alcohol was used to suspend the coated MWCNTs with aluminium nanoparticles (120 nm) in order to form nano thermite colloid by ultrasonic technique. The presence of CuO layer plays the role of an active oxidizer for the Aluminum nanoparticles. The obtained colloid was incorporated and dispersed in 1,3,5-trinitro-1,3,5-triazinane (RDX). The influence of colloid on RDX decomposition kinetic was evaluated using the isoconversional methods (modified Kissinger-Akahira-Sunose (KAS) methods). The mean value of apparent activation energy was reduced by 37.5 %. This dramatic change in RDX decomposition ascribed trait to the nano-thermite colloid reactivity and the facile integration of colloidal thermite particles with the RDX.

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“…[1][2][3][4] On account of pursuing high energy and safe explosives, many scientists have paid considerable attention to compounds' design and synthesis over several decades. [5][6][7] As is known, due to the inherent power-safety contradiction, it is still a challenging task to achieve a ne balance between high detonation properties and low sensitivity. [8][9][10] Recently, an ideal method in terms of obtaining explosives with excellent comprehensive performance by cocrystallizing energetic compounds was reported.…”

Section: Introductionmentioning

confidence: 99%

Periodic DFT study of structural transformations of cocrystal NTO/TZTN under high pressure

Zhao

Yang

2018

RSC Adv.

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Stabilized super-thermite colloids: A new generation of advanced highly energetic materials

Cited by 48 publications

References 42 publications

Nitrocellulose Catalyzed With Manganese Oxide Nanoparticles: Advanced Energetic Nanocomposite With Superior Decomposition Kinetics

Nitrocellulose Catalyzed With Manganese Oxide Nanoparticles: Advanced Energetic Nanocomposite With Superior Decomposition Kinetics

Investigation of a novel nanothermite colloid based on CuO coated CNTs on the thermo-analytical characteristics of 1,3,5-trinitro-1,3,5-triazinane

Periodic DFT study of structural transformations of cocrystal NTO/TZTN under high pressure

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