Functionalization of ordered iron-based nanoparticles deposited on mesoporous films

Mesoporous films obtained by dip-coating, combining polycondensation of silicate species and organization of amphiphilic mesophases, were decorated with iron-based nanoparticles from iron aqueous solution. High-resolution transmission electron microscopy (HR-TEM) images and energy dispersive X-rays...

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Autores principales: Claudia Marchi, M., Figueroa, C.A., Alvarez, F.
Formato: JOUR
Materias:
Functionalization
Iron particles
Mesoporous films
Ordered nanoparticles
Amphiphilic mesophases
Mesoporous materials
Nanostructured materials
Polycondensation
Transmission electron microscopy
X ray photoelectron spectroscopy
Nanoparticles
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_15334880_v8_n1_p448_ClaudiaMarchi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_15334880_v8_n1_p448_ClaudiaMarchi
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spelling todo:paper_15334880_v8_n1_p448_ClaudiaMarchi2023-10-03T16:21:33Z Functionalization of ordered iron-based nanoparticles deposited on mesoporous films Claudia Marchi, M. Figueroa, C.A. Alvarez, F. Functionalization Iron particles Mesoporous films Ordered nanoparticles Amphiphilic mesophases Mesoporous films Mesoporous materials Nanostructured materials Polycondensation Transmission electron microscopy X ray photoelectron spectroscopy Nanoparticles Mesoporous films obtained by dip-coating, combining polycondensation of silicate species and organization of amphiphilic mesophases, were decorated with iron-based nanoparticles from iron aqueous solution. High-resolution transmission electron microscopy (HR-TEM) images and energy dispersive X-rays spectroscopy (EDS) analysis show that the nanoparticles have diameters between 5 to 10 nm and they are deposited in an ordered sequence exclusively on top of the mesoporous structure. Afterward, by irradiating the material with a hydrogen ion beam, the iron-based compound is functionalized, i.e., its physical-chemical properties are modified. X-ray photoelectron spectroscopy (XPS) showed that the iron oxides and hydroxides are reduced to metallic iron. The deposition of organized iron-based nanoparticles and further ion beam functionalization might open perspectives on the study and fabrication of complex new materials. Copyright © 2008 American Scientific Publishers All rights reserved. Fil:Claudia Marchi, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Alvarez, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15334880_v8_n1_p448_ClaudiaMarchi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Functionalization
Iron particles
Mesoporous films
Ordered nanoparticles
Amphiphilic mesophases
Mesoporous films
Mesoporous materials
Nanostructured materials
Polycondensation
Transmission electron microscopy
X ray photoelectron spectroscopy
Nanoparticles
spellingShingle Functionalization
Iron particles
Mesoporous films
Ordered nanoparticles
Amphiphilic mesophases
Mesoporous films
Mesoporous materials
Nanostructured materials
Polycondensation
Transmission electron microscopy
X ray photoelectron spectroscopy
Nanoparticles
Claudia Marchi, M.
Figueroa, C.A.
Alvarez, F.
Functionalization of ordered iron-based nanoparticles deposited on mesoporous films
topic_facet Functionalization
Iron particles
Mesoporous films
Ordered nanoparticles
Amphiphilic mesophases
Mesoporous films
Mesoporous materials
Nanostructured materials
Polycondensation
Transmission electron microscopy
X ray photoelectron spectroscopy
Nanoparticles
description Mesoporous films obtained by dip-coating, combining polycondensation of silicate species and organization of amphiphilic mesophases, were decorated with iron-based nanoparticles from iron aqueous solution. High-resolution transmission electron microscopy (HR-TEM) images and energy dispersive X-rays spectroscopy (EDS) analysis show that the nanoparticles have diameters between 5 to 10 nm and they are deposited in an ordered sequence exclusively on top of the mesoporous structure. Afterward, by irradiating the material with a hydrogen ion beam, the iron-based compound is functionalized, i.e., its physical-chemical properties are modified. X-ray photoelectron spectroscopy (XPS) showed that the iron oxides and hydroxides are reduced to metallic iron. The deposition of organized iron-based nanoparticles and further ion beam functionalization might open perspectives on the study and fabrication of complex new materials. Copyright © 2008 American Scientific Publishers All rights reserved.
format JOUR
author Claudia Marchi, M.
Figueroa, C.A.
Alvarez, F.
author_facet Claudia Marchi, M.
Figueroa, C.A.
Alvarez, F.
author_sort Claudia Marchi, M.
title Functionalization of ordered iron-based nanoparticles deposited on mesoporous films
title_short Functionalization of ordered iron-based nanoparticles deposited on mesoporous films
title_full Functionalization of ordered iron-based nanoparticles deposited on mesoporous films
title_fullStr Functionalization of ordered iron-based nanoparticles deposited on mesoporous films
title_full_unstemmed Functionalization of ordered iron-based nanoparticles deposited on mesoporous films
title_sort functionalization of ordered iron-based nanoparticles deposited on mesoporous films
url http://hdl.handle.net/20.500.12110/paper_15334880_v8_n1_p448_ClaudiaMarchi
work_keys_str_mv AT claudiamarchim functionalizationoforderedironbasednanoparticlesdepositedonmesoporousfilms
AT figueroaca functionalizationoforderedironbasednanoparticlesdepositedonmesoporousfilms
AT alvarezf functionalizationoforderedironbasednanoparticlesdepositedonmesoporousfilms
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