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Pb(core)/ZnO(shell) nanowires obtained by microwave-assisted method

F Solis-Pomar12, MF Meléndrez3, R Esparza4 and E Pérez-Tijerina12*

Author Affiliations

1 Laboratorio de Nanociencias y Nanotecnología CICFiM (FCFM), Universidad Autónoma de Nuevo León, Monterrey, Nuevo León 66450, México

2 Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología (CIIDIT) de la UANL-PIIT, Apodaca, Nuevo León 66600, México

3 Department of Materials Engineering (DIMAT), Faculty of Engineering, 270 Edmundo Larenas, Casilla 160-C, University of Concepcion, Concepcion, Chile

4 International Center for Nanotechnology and Advanced Materials, Department of Physics & Astronomy, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA

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Nanoscale Research Letters 2011, 6:553  doi:10.1186/1556-276X-6-553

Published: 10 October 2011

Abstract

In this study, Pb-filled ZnO nanowires [Pb(core)/ZnO(shell)] were synthesized by a simple and novel one-step vapor transport and condensation method by microwave-assisted decomposition of zinc ferrite. The synthesis was performed using a conventional oven at 1000 W and 5 min of treatment. After synthesis, a spongy white cotton-like material was obtained in the condensation zone of the reaction system. HRTEM analysis revealed that product consists of a Pb-(core) with (fcc) cubic structure that preferentially grows in the [111] direction and a hexagonal wurtzite ZnO-(Shell) that grows in the [001] direction. Nanowire length was more than 5 μm and a statistical analysis determined that the shell and core diameters were 21.00 ± 3.00 and 4.00 ± 1.00 nm, respectively. Experimental, structural details, and synthesis mechanism are discussed in this study.