Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/1910
Title: Hierarchically structured metal oxide/silica nanofibers by colloid electrospinning
Authors: Horzum Polat, Nesrin
Mun˜oz-Espí, Rafael
Glasser, Gunnar
Demir, Mustafa Muammer
Landfester, Katharina
Crespy, Daniel
Horzum Polat, Nesrin
Demir, Mustafa Muammer
Izmir Institute of Technology. Materials Science and Engineering
Keywords: Electrospinning
Catalysis
Ceria
Lithium cobalt oxides
Metal oxides
Nanoparticles
Issue Date: Nov-2012
Publisher: American Chemical Society
Source: Horzum, N., Muñoz-Espí, R., Glasser, G., Demir, M. M., Landfester, K., and Crespy, D. (2012). Hierarchically structured metal oxide/silica nanofibers by colloid electrospinning. ACS Applied Materials and Interfaces, 4(11), 6338-6345. doi:10.1021/am301969w
Abstract: We present herein a new concept for the preparation of nanofibrous metal oxides based on the simultaneous electrospinning of metal oxide precursors and silica nanoparticles. Precursor fibers are prepared by electrospinning silica nanoparticles (20 nm in diameter) dispersed in an aqueous solution of poly(acrylic acid) and metal salts. Upon calcination in air, the poly(acrylic acid) matrix is removed, the silica nanoparticles are cemented, and nanocrystalline metal oxide particles of 4-14 nm are nucleated at the surface of the silica nanoparticles. The obtained continuous silica fibers act as a structural framework for metal oxide nanoparticles and show improved mechanical integrity compared to the neat metal oxide fibers. The hierarchically nanostructured materials are promising for catalysis applications, as demonstrated by the successful degradation of a model dye in the presence of the fibers.
URI: http://doi.org/10.1021/am301969w
http://hdl.handle.net/11147/1910
ISSN: 1944-8244
1944-8252
Appears in Collections:Chemistry / Kimya
Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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