Gas-phase synthesis of bimetallic oxide nanoparticles with designed elemental compositions for controlling the explosive reactivity of nanoenergetic materials

9Citations
Citations of this article
11Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

We demonstrate a simple and viable method for controlling the energy release rate and pressurization rate of nanoenergetic materials by controlling the relative elemental compositions of oxidizers. First, bimetallic oxide nanoparticles (NPs) with a homogeneous distribution of two different oxidizer components (CuO and Fe2O3) were generated by a conventional spray pyrolysis method. Next, the Al NPs employed as a fuel were mixed with CuO-Fe2O3 bimetallic oxide NPs by an ultrasonication process in ethanol solution. Finally, after the removal of ethanol by a drying process, the NPs were converted into energetic materials (EMs). The effects of the mass fraction of CuO in the CuO-Fe2O3 bimetallic oxide NPs on the explosive reactivity of the resulting EMs were examined by using a differential scanning calorimeter and pressure cell tester (PCT) systems. The results clearly indicate that the energy release rate and pressurization rate of EMs increased linearly as the mass fraction of CuO in the CuO-Fe2O3 bimetallic oxide NPs increased. This suggests that the precise control of the stoichiometric proportions of the strong oxidizer (CuO) and mild oxidizer (Fe2O3) components in the bimetallic oxide NPs is a key factor in tuning the explosive reactivity of EMs. © 2011 Ji Young Ahn et al.

Cite

CITATION STYLE

APA

Ahn, J. Y., Kim, W. D., Kim, J. H., Kim, J. H., Lee, J. K., Kim, J. M., & Kim, S. H. (2011). Gas-phase synthesis of bimetallic oxide nanoparticles with designed elemental compositions for controlling the explosive reactivity of nanoenergetic materials. Journal of Nanomaterials, 2011. https://doi.org/10.1155/2011/216709

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free