Cargando…
Nanoporous composites prepared by a combination of SBA-15 with Mg–Al mixed oxides. Water vapor sorption properties
This work presents two easy ways for preparing nanostructured mesoporous composites by interconnecting and combining SBA-15 with mixed oxides derived from a calcined Mg–Al hydrotalcite. Two different Mg–Al hydrotalcite addition procedures were implemented, either after or during the SBA-15 synthesis...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Beilstein-Institut
2014
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4143113/ https://www.ncbi.nlm.nih.gov/pubmed/25161858 http://dx.doi.org/10.3762/bjnano.5.136 |
_version_ | 1782331852648873984 |
---|---|
author | Pérez-Verdejo, Amaury Sampieri, Alvaro Pfeiffer, Heriberto Ruiz-Reyes, Mayra Santamaría, Juana-Deisy Fetter, Geolar |
author_facet | Pérez-Verdejo, Amaury Sampieri, Alvaro Pfeiffer, Heriberto Ruiz-Reyes, Mayra Santamaría, Juana-Deisy Fetter, Geolar |
author_sort | Pérez-Verdejo, Amaury |
collection | PubMed |
description | This work presents two easy ways for preparing nanostructured mesoporous composites by interconnecting and combining SBA-15 with mixed oxides derived from a calcined Mg–Al hydrotalcite. Two different Mg–Al hydrotalcite addition procedures were implemented, either after or during the SBA-15 synthesis (in situ method). The first procedure, i.e., the post-synthesis method, produces a composite material with Mg–Al mixed oxides homogeneously dispersed on the SBA-15 nanoporous surface. The resulting composites present textural properties similar to the SBA-15. On the other hand, with the second procedure (in situ method), Mg and Al mixed oxides occur on the porous composite, which displays a cauliflower morphology. This is an important microporosity contribution and micro and mesoporous surfaces coexist in almost the same proportion. Furthermore, the nanostructured mesoporous composites present an extraordinary water vapor sorption capacity. Such composites might be utilized as as acid-base catalysts, adsorbents, sensors or storage nanomaterials. |
format | Online Article Text |
id | pubmed-4143113 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-41431132014-08-26 Nanoporous composites prepared by a combination of SBA-15 with Mg–Al mixed oxides. Water vapor sorption properties Pérez-Verdejo, Amaury Sampieri, Alvaro Pfeiffer, Heriberto Ruiz-Reyes, Mayra Santamaría, Juana-Deisy Fetter, Geolar Beilstein J Nanotechnol Full Research Paper This work presents two easy ways for preparing nanostructured mesoporous composites by interconnecting and combining SBA-15 with mixed oxides derived from a calcined Mg–Al hydrotalcite. Two different Mg–Al hydrotalcite addition procedures were implemented, either after or during the SBA-15 synthesis (in situ method). The first procedure, i.e., the post-synthesis method, produces a composite material with Mg–Al mixed oxides homogeneously dispersed on the SBA-15 nanoporous surface. The resulting composites present textural properties similar to the SBA-15. On the other hand, with the second procedure (in situ method), Mg and Al mixed oxides occur on the porous composite, which displays a cauliflower morphology. This is an important microporosity contribution and micro and mesoporous surfaces coexist in almost the same proportion. Furthermore, the nanostructured mesoporous composites present an extraordinary water vapor sorption capacity. Such composites might be utilized as as acid-base catalysts, adsorbents, sensors or storage nanomaterials. Beilstein-Institut 2014-08-07 /pmc/articles/PMC4143113/ /pubmed/25161858 http://dx.doi.org/10.3762/bjnano.5.136 Text en Copyright © 2014, Pérez-Verdejo et al. https://creativecommons.org/licenses/by/2.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms) |
spellingShingle | Full Research Paper Pérez-Verdejo, Amaury Sampieri, Alvaro Pfeiffer, Heriberto Ruiz-Reyes, Mayra Santamaría, Juana-Deisy Fetter, Geolar Nanoporous composites prepared by a combination of SBA-15 with Mg–Al mixed oxides. Water vapor sorption properties |
title | Nanoporous composites prepared by a combination of SBA-15 with Mg–Al mixed oxides. Water vapor sorption properties |
title_full | Nanoporous composites prepared by a combination of SBA-15 with Mg–Al mixed oxides. Water vapor sorption properties |
title_fullStr | Nanoporous composites prepared by a combination of SBA-15 with Mg–Al mixed oxides. Water vapor sorption properties |
title_full_unstemmed | Nanoporous composites prepared by a combination of SBA-15 with Mg–Al mixed oxides. Water vapor sorption properties |
title_short | Nanoporous composites prepared by a combination of SBA-15 with Mg–Al mixed oxides. Water vapor sorption properties |
title_sort | nanoporous composites prepared by a combination of sba-15 with mg–al mixed oxides. water vapor sorption properties |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4143113/ https://www.ncbi.nlm.nih.gov/pubmed/25161858 http://dx.doi.org/10.3762/bjnano.5.136 |
work_keys_str_mv | AT perezverdejoamaury nanoporouscompositespreparedbyacombinationofsba15withmgalmixedoxideswatervaporsorptionproperties AT sampierialvaro nanoporouscompositespreparedbyacombinationofsba15withmgalmixedoxideswatervaporsorptionproperties AT pfeifferheriberto nanoporouscompositespreparedbyacombinationofsba15withmgalmixedoxideswatervaporsorptionproperties AT ruizreyesmayra nanoporouscompositespreparedbyacombinationofsba15withmgalmixedoxideswatervaporsorptionproperties AT santamariajuanadeisy nanoporouscompositespreparedbyacombinationofsba15withmgalmixedoxideswatervaporsorptionproperties AT fettergeolar nanoporouscompositespreparedbyacombinationofsba15withmgalmixedoxideswatervaporsorptionproperties |