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Langmuir. 2014 Jun 10;30(22):6556-64. doi: 10.1021/la500573e. Epub 2014 May 27.

A versatile self-assembly approach toward high performance nanoenergetic composite using functionalized graphene.

Author information

1
Department of Electrical and Computer Engineering, University of Missouri , Columbia, Missouri 65211, United States.

Abstract

Exploiting the functionalization chemistry of graphene, long-range electrostatic and short-range covalent interactions were harnessed to produce multifunctional energetic materials through hierarchical self-assembly of nanoscale oxidizer and fuel into highly reactive macrostructures. Specifically, we report a methodology for directing the self-assembly of Al and Bi2O3 nanoparticles on functionalized graphene sheets (FGS) leading to the formation of nanocomposite structures in a colloidal suspension phase that ultimately condense into ultradense macrostructures. The mechanisms driving self-assembly were studied using a host of characterization techniques including zeta potential measurements, X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), particle size analysis, micro-Raman spectroscopy, and electron microscopy. A remarkable enhancement in energy release from 739 ± 18 to 1421 ± 12 J/g was experimentally measured for the FGS self-assembled nanocomposites.

PMID:
24829064
DOI:
10.1021/la500573e

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