Characterization of hybrid cobalt-porous silicon systems: protective effect of the Matrix in the metal oxidation
Entity
UAM. Departamento de Física AplicadaPublisher
Springer New YorkDate
2012-09-02Citation
10.1186/1556-276X-7-495
Nanoscale Research Letters 7.1 (2012): 495
ISSN
1931-7573 (print); 1556-276X (online)DOI
10.1186/1556-276X-7-495Funded by
We acknowledge the European Synchrotron Radiation Facility for provision of synchrotron radiation facilities and the MEC and Consejo Superior de Investigaciones Científicas for financial support (PE-2010 6 0E 013). We would like to thank the BM25-SpLine staff for the technical support. This work has been supported by MICINN through projects FIS-2008-06249, MAT2009-14578-C03-02, MAT2008-06858-C02-01, and MAT2008-06858-C02-02, as well as Comunidad de Madrid, project NANOBIOMAGNET (S2009/MAT- 1726) and European project MAGNIFYCO (Contract NMP4-SL-2009-228622). Technical support from ICTS Centro Nacional de Microscopia Electrónica (UCM, Madrid) is gratefully acknowleged.Project
info:eu-repo/grantAgreement/EC/FP7/228622; Comunidad de Madrid. S2009/MAT-1726/NANOBIOMAGNETEditor's Version
http://dx.doi.org/10.1186/1556-276X-7-495Subjects
Hybrid materials; Metal electroinfiltration; Porous silicon; Transmission electron microscopy; FísicaRights
© 2012 Martín-Palma and Muñoz-NovalAbstract
In the present work, the characterization of cobalt-porous silicon (Co-PSi) hybrid systems is performed by a combination of magnetic, spectroscopic, and structural techniques. The Co-PSi structures are composed by a columnar matrix of PSi with Co nanoparticles embedded inside, as determined by Transmission Electron Microscopy (TEM). The oxidation state, crystalline structure, and magnetic behavior are determined by XRay Absorption Spectroscopy (XAS) and Alternating Gradient Field Magnetometry (AGFM). Additionally, the Co concentration profile inside the matrix has been studied by Rutherford Backscattering Spectroscopy (RBS). It is concluded that the PSi matrix can be tailored to provide the Co nanoparticles with extra protection against oxidation
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Google Scholar:Noval, Álvaro Muñoz
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Gallach, Darío
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García-Tuñón, Miguel Ángel García
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Ferro-Llanos, Vicente
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Herrero, Pilar
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Fukami, Kazuhiro
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Ogata, Yukio
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Torres Costa, Vicente
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Martín Palma, Raúl José
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Ciment-Font, Aurelio
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Silván, Miguel Manso
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