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Surface Passivation of Bare Aluminum Nanoparticles using Perfluoroalkyl Carboxylic Acids

Published online by Cambridge University Press:  01 February 2011

R. Jason Jouet ,
Andrea D. Warren ,
David M. Rosenberg  and
Victor J. Bellitto
R. Jason Jouet
Affiliation:
Naval Surface Warfare Center – Indian Head Division, Research and Technology Department, 101 Strauss Avenue, Indian Head, MD 20640
Andrea D. Warren
Affiliation:
Naval Surface Warfare Center – Indian Head Division, Research and Technology Department, 101 Strauss Avenue, Indian Head, MD 20640
David M. Rosenberg
Affiliation:
Naval Surface Warfare Center – Indian Head Division, Research and Technology Department, 101 Strauss Avenue, Indian Head, MD 20640
Victor J. Bellitto
Affiliation:
Naval Surface Warfare Center – Indian Head Division, Research and Technology Department, 101 Strauss Avenue, Indian Head, MD 20640
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Abstract

Surface passivation of unpassivated Al nanoparticles has been realized using self assembled monolayers (SAMs). Nanoscale Al particles were prepared in solution by catalytic decomposition of H3Al•NMe3 or H3Al•N(Me)Pyr by Ti(OiPr)4 and coated in situ using a perfluoroalkyl carboxylic acid SAM. Because the Al particles are prepared using wet chemistry techniques and coated in solution, they are free of oxygen passivation. This SAM coating passivates the aluminum and seems to prevent the oxidation of the particles in air and renders the composite material, to some extent, soluble in polar organic solvents such as diethyl ether. Characterization data including SEM, TEM, TGA, and ATR-FTIR of prepared materials is presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 800: Symposium AA – Synthesis, Characterization, and Properties of Energetic/Reactive Nanomaterials , 2003 , AA2.4
Copyright
Copyright © Materials Research Society 2004

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