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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...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2014
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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. |
format | Online Article Text |
id | pubmed-5466126 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
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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