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Stabilization of Metal Nanoparticles – A Chemical Approach

✍ Scribed by A. A. Gromov; Y. I. Strokova; U. Teipel

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
576 KB
Volume
32
Category
Article
ISSN
0930-7516

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✦ Synopsis

Abstract

The chemical and physical mechanisms for the formation of passivation coatings on active metal nanoparticles were studied in this work. The passivation processes involved in the formation of coatings on nanoparticles were analyzed by SEM, TEM, XRD, EDS, DTA‐TG and chemical analysis. Inorganic passivation coatings for aluminum nanopowders were more effective in terms of thermal stability than organic ones. The stability of organic passivation coatings to further oxidation did not depend on the type of coating, but instead depended on the particle size of the passivated powders. A new advanced approach involving a metal nanopowder passivation technique has been applied.

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