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El Mel, A.-A., Molina-Luna, L., Buffiere, M., Tessier, P.-Y., Du, K., Choi, C.-H., Kleebe, H.-J., Konstantinidis, S., Bittencourt, C. & Snyders, R. (2014) Electron Beam Nanosculpting of Kirkendall Oxide Nanochannels. ACS Nano, 8 1854–1861. 
Added by: Florent Boucher (2016-04-29 09:26:45)
Type de référence: Article
DOI: 10.1021/nn406328f
Numéro d'identification (ISBN etc.): 1936-0851
Clé BibTeX: ElMel2014b
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Catégories: PCM
Mots-clés: diffusion, electron beam, fabrication, irradiation, Kirkendall effect, nanocrystals, nanomanipulation, nanoparticles, nanoscale, nanostructures, nanotubes, nanowires, optical manipulation, oxide nanotubes, transmission electron microscopy
Créateurs: Bittencourt, Buffiere, Choi, Du, El Mel, Kleebe, Konstantinidis, Molina-Luna, Snyders, Tessier
Collection: ACS Nano
Consultations : 7/399
Indice de consultation : 2%
Indice de popularité : 0.5%
Résumé     
The nanomanipulation of metal nanoparticles inside oxide nanotubes, synthesized by means of the Kirkendall effect, is demonstrated. In this strategy, a focused electron beam, extracted from a transmission electron microscope source, is used to site-selectively heat the oxide material in order to generate and steer a metal ion diffusion flux inside the nanochannels. The metal ion flux generated inside the tube is a consequence of the reduction of the oxide phase occurring upon exposure to the e-beam. We further show that the directional migration of the metal ions inside the nanotubes can be achieved by locally tuning the chemistry and the morphology of the channel at the nanoscale. This allows sculpting organized metal nanoparticles inside the nanotubes with various sizes, shapes, and periodicities. This nanomanipulation technique is very promising since it enables creating unique nanostructures that, at present, cannot be produced by an alternative classical synthesis route.
Added by: Florent Boucher  
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