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TEM 3D Tomography of Noble Metal Nanowires Growth Inside SiO2 Mesoporous Aggregates

Published online by Cambridge University Press:  21 March 2011

J. Arbiol ,
E. Rossinyol ,
A. Cabot ,
F. Peirò ,
A. Cornet  and
J. R. Morante
J. Arbiol
Affiliation:
Enginyeria i Materials Electrònics, Departament d'Electrònica, Universitat de Barcelona, C/. Martíi Franqués, 1, Barcelona, E-08028, (Spain).arbiol@el.ub.es, URL: http://nun97.el.ub.es/∼arbiol/ SCT, Universitat de Barcelona, Lluís Solé i Sabarís, 1-3, Barcelona, E-08028, (Spain)
E. Rossinyol
Affiliation:
Enginyeria i Materials Electrònics, Departament d'Electrònica, Universitat de Barcelona, C/. Martíi Franqués, 1, Barcelona, E-08028, (Spain).arbiol@el.ub.es, URL: http://nun97.el.ub.es/∼arbiol/
A. Cabot
Affiliation:
Enginyeria i Materials Electrònics, Departament d'Electrònica, Universitat de Barcelona, C/. Martíi Franqués, 1, Barcelona, E-08028, (Spain).arbiol@el.ub.es, URL: http://nun97.el.ub.es/∼arbiol/
F. Peirò
Affiliation:
Enginyeria i Materials Electrònics, Departament d'Electrònica, Universitat de Barcelona, C/. Martíi Franqués, 1, Barcelona, E-08028, (Spain).arbiol@el.ub.es, URL: http://nun97.el.ub.es/∼arbiol/
A. Cornet
Affiliation:
Enginyeria i Materials Electrònics, Departament d'Electrònica, Universitat de Barcelona, C/. Martíi Franqués, 1, Barcelona, E-08028, (Spain).arbiol@el.ub.es, URL: http://nun97.el.ub.es/∼arbiol/
J. R. Morante
Affiliation:
Enginyeria i Materials Electrònics, Departament d'Electrònica, Universitat de Barcelona, C/. Martíi Franqués, 1, Barcelona, E-08028, (Spain).arbiol@el.ub.es, URL: http://nun97.el.ub.es/∼arbiol/
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Abstract

The use of bright-field transmission electron microscopy 3-D tomographic reconstruction allowed us to localize the synthesized nanostructures within the pores of mesoporous nanotemplates. Using this technique, we found that noble metal impregnation resulted in the inclusion of metal nanostructures within the SBA-15 mesoporous silica hexagonal pores (from nanoclusters to nanowires). The method allowed corroborating if the nanostructures were synthesized inside the pores or if they were alternatively on the nanotemplate aggregates exterior surface.

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