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Synthesis of NiO nanowalls by thermal treatment of Ni film deposited onto a stainless steel substrate

Zhang, Kaili and Rossi, Carole and Alphonse, Pierre and Tenailleau, Christophe Synthesis of NiO nanowalls by thermal treatment of Ni film deposited onto a stainless steel substrate. (2008) Nanotechnology, vol. 19 (n° 15). 155605 . ISSN 0957-4484

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Official URL: http://dx.doi.org/10.1088/0957-4484/19/15/155605

Abstract

Two-dimensional nanostructures have a variety of applications due to their large surface areas. In this study, the authors present a simple and convenient method to realize two-dimensional NiO nanowalls by thermal treatment of a Ni thin film deposited by sputtering onto a stainless steel substrate. The substrate surface area is supposed to be significantly increased by creating nanowalls. The effects on the nanowall morphology of the thermal treatment temperature and duration are investigated. A mechanism based on the surface diffusion of Ni2+ ions from the Ni base film is then proposed for the growth of the NiO nanowalls. The as-synthesized NiO nanowalls are characterized by scanning electron microscopy, energy-dispersive x-ray analysis, x-ray diffraction, transmission electron microscopy and high resolution transmission electron microscopy.

Item Type:Article
Additional Information:Thanks to Institute of Physics editor. The definitive version is available at http://www.iop.org The original PDF of the article can be found at Nanotechnology website : www.iop.org/EJ/journal/Nano
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By: Celine Cabaup
Deposited On:30 Apr 2009 12:16

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