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FTIR Spectrometry as a Quality Control Method for Surface Engineering of Nanomaterials

Published online by Cambridge University Press:  17 March 2011

Marie-Isabelle Baraton
Marie-Isabelle Baraton*
Affiliation:
SPCTS – UMR 6638 CNRS, University of Limoges, Limoges (France) e-mail: [email protected]
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Abstract

Controlled surface engineering of nanopowders cannot be achieved without a specific characterization of the surface chemical groups and the monitoring of the reactions or interactions responsible for the surface modifications. As an example of controlled engineering of nanopowder surfaces, the surface of tin oxide nanoparticles (n-SnO2) is modified by grafting hexamethyldisilazane (HMDS) while the process leading to chemical and electrical modifications of n-SnO2 is monitored in situ by Fourier transform infrared spectrometry. It appears that the effects of the grafting reaction on the surface chemical composition are complex and that a desorption at increasing temperatures leads to strong perturbations of the chemical groups originally grafted on n-SnO2. The present work clarifies the issues related to surface engineering of nanomaterials and elucidates the case of HMDS-grafted n-SnO2.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 636: Symposium D – Nonlithographic and Lithographic Methods of Nanofabrication-From Ultralarge Scale , 2000 , D8.1.1
Copyright
Copyright © Materials Research Society 2001

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