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Modified Aerosol Routes to Core-Shell Nano-Energetic Materials Synthesis

Published online by Cambridge University Press:  26 January 2012

Jingyu Feng ,
Snehaunshu Chowdhury ,
Guoqiang Jian  and
Michael R. Zachariah
Jingyu Feng
Affiliation:
Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742-3035, U.S.A.
Snehaunshu Chowdhury
Affiliation:
Department of Mechanical Engineering, University of Maryland, College Park, MD 20742-3035, U.S.A.
Guoqiang Jian
Affiliation:
Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742-3035, U.S.A.
Michael R. Zachariah*
Affiliation:
Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742-3035, U.S.A. Department of Mechanical Engineering, University of Maryland, College Park, MD 20742-3035, U.S.A.
*
*Corresponding author: mrz@umd.edu
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Abstract

Following the generic strategy of creating core-shell structured nanoparticles reported by our group previously [1] and exploring its applications, an aerosol route combined with iron carbonyl decomposition was developed to encapsulate strong oxidizer within mild oxidizer particles. This modified method enables the application of hygroscopic nano-energetic materials by stabilizing them within a water-insoluble shell. Fe2O3/I2O5 composite oxidizers have been created. Some of the results obtained from combustion tests show that the composite system significantly outperforms the single metal oxide (Fe2O3) system in both pressurization rate and peak pressure. The time-resolved mass spectrometry shows that a significant amount of O2 and I2 are released from the composite oxidizers. These preliminary results suggest a supplement to the previous strategy of obtaining the core-shell structured composite oxidizers and the method still needs to be further optimized.

Keywords

core/shellenergetic materialnanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1405: Symposium Y – Advances in Energetic Materials Research , 2012 , mrsf11-1405-y09-08
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

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