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Influence of Structure-modifying Agents in the Synthesis of Zr-doped SBA-15 Silica and Their Use as Catalysts in the Furfural Hydrogenation to Obtain High Value-added Products through the Meerwein-Ponndorf-Verley Reduction
Zr-doped mesoporous silicas with different textural parameters have been synthesized in the presence of structure-modifying agents, and then characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N(2) adsorption-desorption at −196 °C, NH(3) thermoprogrammed desorption (NH(...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6412303/ https://www.ncbi.nlm.nih.gov/pubmed/30769888 http://dx.doi.org/10.3390/ijms20040828 |
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author | López-Asensio, Raquel Jiménez Gómez, Carmen Pilar García Sancho, Cristina Moreno-Tost, Ramón Cecilia, Juan Antonio Maireles-Torres, Pedro |
author_facet | López-Asensio, Raquel Jiménez Gómez, Carmen Pilar García Sancho, Cristina Moreno-Tost, Ramón Cecilia, Juan Antonio Maireles-Torres, Pedro |
author_sort | López-Asensio, Raquel |
collection | PubMed |
description | Zr-doped mesoporous silicas with different textural parameters have been synthesized in the presence of structure-modifying agents, and then characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N(2) adsorption-desorption at −196 °C, NH(3) thermoprogrammed desorption (NH(3)–TPD), CO(2) thermoprogrammed desorption (CO(2)–TPD), and X-ray photoelectron spectroscopy (XPS). These porous materials were evaluated in the furfural hydrogenation through the Meerwein-Ponndorf-Verley (MPV) reaction. The catalytic results indicate that the catalyst synthesized under hydrothermal conditions and adding a pore expander agent is more active and selective to furfuryl alcohol. However, the Zr-doped porous silica catalysts that were synthesized at room temperature, which possess narrow pore sizes, tend to form i-propyl furfuryl and difurfuryl ethers, coming from etherification between furfuryl alcohol (FOL) and isopropanol molecules (used as H-donor) by a S(N)2 mechanism. |
format | Online Article Text |
id | pubmed-6412303 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64123032019-04-05 Influence of Structure-modifying Agents in the Synthesis of Zr-doped SBA-15 Silica and Their Use as Catalysts in the Furfural Hydrogenation to Obtain High Value-added Products through the Meerwein-Ponndorf-Verley Reduction López-Asensio, Raquel Jiménez Gómez, Carmen Pilar García Sancho, Cristina Moreno-Tost, Ramón Cecilia, Juan Antonio Maireles-Torres, Pedro Int J Mol Sci Article Zr-doped mesoporous silicas with different textural parameters have been synthesized in the presence of structure-modifying agents, and then characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N(2) adsorption-desorption at −196 °C, NH(3) thermoprogrammed desorption (NH(3)–TPD), CO(2) thermoprogrammed desorption (CO(2)–TPD), and X-ray photoelectron spectroscopy (XPS). These porous materials were evaluated in the furfural hydrogenation through the Meerwein-Ponndorf-Verley (MPV) reaction. The catalytic results indicate that the catalyst synthesized under hydrothermal conditions and adding a pore expander agent is more active and selective to furfuryl alcohol. However, the Zr-doped porous silica catalysts that were synthesized at room temperature, which possess narrow pore sizes, tend to form i-propyl furfuryl and difurfuryl ethers, coming from etherification between furfuryl alcohol (FOL) and isopropanol molecules (used as H-donor) by a S(N)2 mechanism. MDPI 2019-02-14 /pmc/articles/PMC6412303/ /pubmed/30769888 http://dx.doi.org/10.3390/ijms20040828 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article López-Asensio, Raquel Jiménez Gómez, Carmen Pilar García Sancho, Cristina Moreno-Tost, Ramón Cecilia, Juan Antonio Maireles-Torres, Pedro Influence of Structure-modifying Agents in the Synthesis of Zr-doped SBA-15 Silica and Their Use as Catalysts in the Furfural Hydrogenation to Obtain High Value-added Products through the Meerwein-Ponndorf-Verley Reduction |
title | Influence of Structure-modifying Agents in the Synthesis of Zr-doped SBA-15 Silica and Their Use as Catalysts in the Furfural Hydrogenation to Obtain High Value-added Products through the Meerwein-Ponndorf-Verley Reduction |
title_full | Influence of Structure-modifying Agents in the Synthesis of Zr-doped SBA-15 Silica and Their Use as Catalysts in the Furfural Hydrogenation to Obtain High Value-added Products through the Meerwein-Ponndorf-Verley Reduction |
title_fullStr | Influence of Structure-modifying Agents in the Synthesis of Zr-doped SBA-15 Silica and Their Use as Catalysts in the Furfural Hydrogenation to Obtain High Value-added Products through the Meerwein-Ponndorf-Verley Reduction |
title_full_unstemmed | Influence of Structure-modifying Agents in the Synthesis of Zr-doped SBA-15 Silica and Their Use as Catalysts in the Furfural Hydrogenation to Obtain High Value-added Products through the Meerwein-Ponndorf-Verley Reduction |
title_short | Influence of Structure-modifying Agents in the Synthesis of Zr-doped SBA-15 Silica and Their Use as Catalysts in the Furfural Hydrogenation to Obtain High Value-added Products through the Meerwein-Ponndorf-Verley Reduction |
title_sort | influence of structure-modifying agents in the synthesis of zr-doped sba-15 silica and their use as catalysts in the furfural hydrogenation to obtain high value-added products through the meerwein-ponndorf-verley reduction |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6412303/ https://www.ncbi.nlm.nih.gov/pubmed/30769888 http://dx.doi.org/10.3390/ijms20040828 |
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