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Preparation of functionalized porous nano-γ-Al(2)O(3) powders employing colophony extract

This study reports the synthesis of porous nano alumina employing carboxylato-alumoxanes [Al(O)(x)(OH)(y)(O(2)CR)(z)](n) as precursors for controlling the pore size, pore size distribution and porosity of the alumina, using a new process ecofriendly. The carboxylato-alumoxanes was prepared by the re...

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Autores principales: Sifontes, Ángela B., Gutierrez, Brenda, Mónaco, Andrea, Yanez, Andreina, Díaz, Yraida, Méndez, Franklin J., Llovera, Ligia, Cañizales, Edgar, Brito, Joaquín L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5466126/
https://www.ncbi.nlm.nih.gov/pubmed/28626658
http://dx.doi.org/10.1016/j.btre.2014.07.001
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author Sifontes, Ángela B.
Gutierrez, Brenda
Mónaco, Andrea
Yanez, Andreina
Díaz, Yraida
Méndez, Franklin J.
Llovera, Ligia
Cañizales, Edgar
Brito, Joaquín L.
author_facet Sifontes, Ángela B.
Gutierrez, Brenda
Mónaco, Andrea
Yanez, Andreina
Díaz, Yraida
Méndez, Franklin J.
Llovera, Ligia
Cañizales, Edgar
Brito, Joaquín L.
author_sort Sifontes, Ángela B.
collection PubMed
description This study reports the synthesis of porous nano alumina employing carboxylato-alumoxanes [Al(O)(x)(OH)(y)(O(2)CR)(z)](n) as precursors for controlling the pore size, pore size distribution and porosity of the alumina, using a new process ecofriendly. The carboxylato-alumoxanes was prepared by the reaction of boehmite with carboxylic acids. The boehmite was obtained by the hydrolysis of aluminum alkoxide in an aqueous solution. The colophony extract is employed as a source of carboxylic acids. The materials were characterized, using XRD, TGA, N(2) physical adsorption, SEM, TEM, NMR and FTIR. A mechanism was proposed for the formation of the synthesized structures. TEM measurements confirmed particle size ranged from 5 to 8 nm.
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spelling pubmed-54661262017-06-16 Preparation of functionalized porous nano-γ-Al(2)O(3) powders employing colophony extract Sifontes, Ángela B. Gutierrez, Brenda Mónaco, Andrea Yanez, Andreina Díaz, Yraida Méndez, Franklin J. Llovera, Ligia Cañizales, Edgar Brito, Joaquín L. Biotechnol Rep (Amst) Article This study reports the synthesis of porous nano alumina employing carboxylato-alumoxanes [Al(O)(x)(OH)(y)(O(2)CR)(z)](n) as precursors for controlling the pore size, pore size distribution and porosity of the alumina, using a new process ecofriendly. The carboxylato-alumoxanes was prepared by the reaction of boehmite with carboxylic acids. The boehmite was obtained by the hydrolysis of aluminum alkoxide in an aqueous solution. The colophony extract is employed as a source of carboxylic acids. The materials were characterized, using XRD, TGA, N(2) physical adsorption, SEM, TEM, NMR and FTIR. A mechanism was proposed for the formation of the synthesized structures. TEM measurements confirmed particle size ranged from 5 to 8 nm. Elsevier 2014-07-21 /pmc/articles/PMC5466126/ /pubmed/28626658 http://dx.doi.org/10.1016/j.btre.2014.07.001 Text en © 2014 The Authors https://creativecommons.org/licenses/by-nc-nd/3.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).
spellingShingle Article
Sifontes, Ángela B.
Gutierrez, Brenda
Mónaco, Andrea
Yanez, Andreina
Díaz, Yraida
Méndez, Franklin J.
Llovera, Ligia
Cañizales, Edgar
Brito, Joaquín L.
Preparation of functionalized porous nano-γ-Al(2)O(3) powders employing colophony extract
title Preparation of functionalized porous nano-γ-Al(2)O(3) powders employing colophony extract
title_full Preparation of functionalized porous nano-γ-Al(2)O(3) powders employing colophony extract
title_fullStr Preparation of functionalized porous nano-γ-Al(2)O(3) powders employing colophony extract
title_full_unstemmed Preparation of functionalized porous nano-γ-Al(2)O(3) powders employing colophony extract
title_short Preparation of functionalized porous nano-γ-Al(2)O(3) powders employing colophony extract
title_sort preparation of functionalized porous nano-γ-al(2)o(3) powders employing colophony extract
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5466126/
https://www.ncbi.nlm.nih.gov/pubmed/28626658
http://dx.doi.org/10.1016/j.btre.2014.07.001
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