Electrospinning of silica sub-microtubes mats with platinum nanoparticles for NO catalytic reduction

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/44745
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Title: Electrospinning of silica sub-microtubes mats with platinum nanoparticles for NO catalytic reduction
Authors: Ruiz-Rosas, Ramiro | Rosas, Juana M. | Loscertales, Ignacio G. | Rodríguez-Mirasol, José | Cordero, Tomás
Research Group/s: Materiales Carbonosos y Medio Ambiente
Center, Department or Service: Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Coaxial electrospinning | Silica nanotubes | Platinum nanoparticles | NOx SCR
Knowledge Area: Química Inorgánica
Issue Date: Sep-2014
Publisher: Elsevier
Citation: Applied Catalysis B: Environmental. 2014, 156-157: 15-24. doi:10.1016/j.apcatb.2014.02.047
Abstract: Silica sub-microtubes loaded with platinum nanoparticles have been prepared in flexible non-woven mats using co-axial electrospinning technique. A partially gelated sol made from tetraethyl orthosilicate was used as the silica precursor, and oil was used as the sacrificial template for the hollow channel generation. Platinum has been supported on the wall of the tubes just adding the metallic precursor to the sol–gel, thus obtaining the supported catalyst by one-pot method. The silica tubes have a high aspect ratio with external/internal diameters of 400/200 nm and well-dispersed platinum nanoparticles of around 2 nm. This catalyst showed a high NO conversion with very high selectivity to N2 at mild conditions in the presence of excess oxygen when using C3H6 as reducing agent. This relevant result reveals the potential of this technique to produce nanostructured catalysts onto easy to handle conformations.
Sponsor: This work was supported by the Spanish Ministry of Economy and Competitiveness under CTQ2012-36408 project.
URI: http://hdl.handle.net/10045/44745
ISSN: 0926-3373 (Print) | 1873-3883 (Online)
DOI: 10.1016/j.apcatb.2014.02.047
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2014 Elsevier B.V.
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.apcatb.2014.02.047
Appears in Collections:INV - MCMA - Artículos de Revistas

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