Metallized SWCNT–Promising Way to Low Sensitive High Energetic Nanocomposites

Assovskiy, Igor G.

doi:10.1002/prep.200800208

Cited by 10 publications

(3 citation statements)

References 4 publications

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“…As an environment-friendly and brisance energetic material, CA has attracted much attention recently. − However, its inherent high mechanical and electrostatic sensitivity hinder its further practical applications . Although many efforts have been devoted to constructing various CA-based materials to reduce the mechanical and electrostatic sensitivity, − including the synthesis of CA-based composites by mixing with carbon materials (graphene, graphite, or activated carbons) and confining CAs to the inside of carbon nanotubes, − it is still difficult to realize a high dispersion of CA in the composite systems to achieve a highly efficient and secure primary explosive.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale Homogeneous Energetic Copper Azides@Porous Carbon Hybrid with Reduced Sensitivity and High Ignition Ability

Yan

Yang

et al. 2018

ACS Appl. Mater. Interfaces

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Research on green primary explosives with lead-free and excellent ignition performance is of significance for practical applications. In this work, we have developed a novel, green, and facile strategy for synthesizing copper azide@porous carbon hybrids (CA@PC) based on ionic cross-linked hydrogel with low-cost cellulose derivatives as the starting material, in which the CA nanoparticles are uniformly distributed in the porous carbon skeletons. The detailed characterizations and control experiments demonstrated that such an outstanding performance originates from the excellent electric conductivity of nanoscale carbon cages. With the favorable unique structures, the as-prepared hybrids can greatly benefit a new type of energetic materials, which exhibit a very low electrostatic sensitivity of 1.06 mJ. Interestingly, the hybrids possess a high ignition ability, and the flame sensitivity can even achieve 47 cm, superior to those well-developed CA-based materials reported previously. This work paves the way toward the design and development of next-generation highly efficient energetic materials.

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Section: Introductionmentioning

confidence: 99%

Nanoscale Homogeneous Energetic Copper Azides@Porous Carbon Hybrid with Reduced Sensitivity and High Ignition Ability

Yan

Yang

et al. 2018

ACS Appl. Mater. Interfaces

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“…In this way, the sensitivity of energetic compositions based on these metals is decreased. 328 However, when RDX and PETN are doped with CB or CNTs, their laser initiation sensitivity is lowered due to an increase in their light absorbance. 329 Although CB increased the photo-sensitivity of RDX and PETN, it decreased the mechanical sensitivity of thermites.…”

Section: Stabilization and Desensitization Of Ems By Cnmsmentioning

confidence: 99%

Highly energetic compositions based on functionalized carbon nanomaterials

Zhao²,

et al. 2016

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“…In addition, CNTs have excellent thermoplasticity and expansibility, which was shown by flowing high‐pressure gases from explosive decomposition of picric acid through the multi‐wall nanotube channels 9. Moreover, it has been proposed that CNTs offer the most effective protection to energetic materials since carbon has the atomic size and mass much less than that of the encapsulated metal atoms, thus the surface energy and sensitivity of the energetic materials are not compromised 10. The new energetic hybrid material is also expected to be easier to handle and more environmentally benign due to a less toxic metal.…”

Section: Introductionmentioning

confidence: 99%

Copper Azide Confined Inside Templated Carbon Nanotubes

Pelletier

Bhattacharyya

Knoke

et al. 2010

Adv Funct Materials

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The currently used primary explosives, such as lead azide and lead styphnate, present serious health hazards due to the toxicity of lead. There is a need to replace them with equally energetic but safer‐to‐handle and more environmentally friendly materials. Copper azide is more environmentally acceptable, but very sensitive and detonates easily from electrostatic charges during handling. If the highly sensitive copper azide is encapsulated within conducting containers, such as anodic aluminum oxide (AAO)‐templated carbon nanotubes (CNTs), its sensitivity can be tamed. This work describes a technique for confining energetic copper azide within CNTs. ∼5 nm colloidal copper oxide nanoparticles are synthesized and filled into the 200 nm diameter CNTs, produced by template synthesis. The Cu‐O inside the CNTs is reduced in hydrogen to copper, and reacted with hydrazoic acid gas to produce copper azide. Upon initiation, the 60 μm long straight, open‐ended CNTs guide decomposition gases along the tube channel without fracturing the nanotube walls. These novel materials have potential for applications as nano‐detonators and green primary explosives; they also offer new opportunities for understanding the physics of detonation at the nanoscale.

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Metallized SWCNT–Promising Way to Low Sensitive High Energetic Nanocomposites

Cited by 10 publications

References 4 publications

Nanoscale Homogeneous Energetic Copper Azides@Porous Carbon Hybrid with Reduced Sensitivity and High Ignition Ability

Nanoscale Homogeneous Energetic Copper Azides@Porous Carbon Hybrid with Reduced Sensitivity and High Ignition Ability

Highly energetic compositions based on functionalized carbon nanomaterials

Copper Azide Confined Inside Templated Carbon Nanotubes

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