Synthesis and Characterization of Graphitic Shell Coated Metal Nanoparticles: A Facile Design to Preserve and Enhance Interfacial Activities of Energetic Nanomaterials
Abstract
Energetic nanomaterials is prominent in solid-state propellants, explosives and pyrotechnics due to the anticipated enhanced oxidation kinetics and ignition in nanoscale regimes. This is largely attributed to their high specific surface areas, metastable structures and smaller diffusion lengths at fuel-oxidizer interfaces. Past works have investigated energetic properties of various metal Nano-Particles, NPs, Al, Ni, Si, etc.[1-3] Enhanced burning rates and ignition of composite Al powder/oxidizer mixtures had peaked past research efforts.[4-8] This includes the PIswork towards use of Nano-Al in explosives and pyrotechnics [9-11] that have improved our fundamental understanding of their size-dependent properties and heat release mechanisms at nano-scale.[6-8,11-14] Yet, the large heat release in these first-generation energetic nanomaterials have been offset by relatively hindered detonation rates due to the solid-state fuel-oxidizer diffusion lengths and rates being limited by the excessive surface oxide shell formations[11] and NP aggregations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 06, 2022
- Accession Number
- AD1201316
Entities
People
- Dibyendu Mukherjee
Organizations
- University of Tennessee system