Integration of nano-Al with Co3O4 nanorods to realize high-exothermic core–shell nanoenergetic materials on a silicon substrate

Nanoenergetic materials (nEMs) have better performance in ignition and energy release rate compared to conventional energetic materials. This makes them have promising applications in actuation, ignition, propulsion, power, fluidic, and electro-explosive devices at the micro and nanoscale. In this s...

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Bibliographic Details
Published in:Combustion and flame 2012-06, Vol.159 (6), p.2202-2209
Main Authors: Xu, Daguo, Yang, Yang, Cheng, Hua, Li, Yang Yang, Zhang, Kaili
Format: Article
Language:English
Subjects:
Al/Co3O4 nanoenergetic materials
Aluminum
Applied sciences
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
High heat of reaction
Ignition
Low onset temperature
Nanocomposites
Nanoelectromechanical systems
Nanomaterials
Nanorods
Nanoscale mixing
Nanostructure
Silicon substrate
Silicon substrates
Theoretical studies. Data and constants. Metering
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Summary:Nanoenergetic materials (nEMs) have better performance in ignition and energy release rate compared to conventional energetic materials. This makes them have promising applications in actuation, ignition, propulsion, power, fluidic, and electro-explosive devices at the micro and nanoscale. In this study, Co3O4 is used for the first time to achieve novel Al/Co3O4 based nEMs by integrating nano-Al with Co3O4 nanorods that are synthesized by a chemical method. The total heat of reaction, especially the exothermic reaction before Al melting, is greatly enhanced by using Co3O4 pure nanostructures (no microscale film exits). The nEMs are fabricated onto a silicon substrate, which is very convenient to achieve promising functional nanoenergetics-on-a-chip. The fabricated nEMs are confirmed to have nanoscale mixing, very high heat of reaction, and significantly reduced onset temperature of the major exothermic reaction by scanning electron microscopy, differential thermal/thermogravimetric analysis, and differential scanning calorimetry.
ISSN:0010-2180
1556-2921
DOI:10.1016/j.combustflame.2012.01.022