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<sub>2</sub> adsorption-desorption at −196 °C...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-02-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/20/4/828 |
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| author | Raquel López-Asensio Carmen Pilar Jiménez Gómez Cristina García Sancho Ramón Moreno-Tost Juan Antonio Cecilia Pedro Maireles-Torres |
| author_facet | Raquel López-Asensio Carmen Pilar Jiménez Gómez Cristina García Sancho Ramón Moreno-Tost Juan Antonio Cecilia Pedro Maireles-Torres |
| author_sort | Raquel López-Asensio |
| collection | DOAJ |
| 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<sub>2</sub> adsorption-desorption at −196 °C, NH<sub>3</sub> thermoprogrammed desorption (NH<sub>3</sub>⁻TPD), CO<sub>2</sub> thermoprogrammed desorption (CO<sub>2</sub>⁻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>i</i>-propyl furfuryl and difurfuryl ethers, coming from etherification between furfuryl alcohol (FOL) and isopropanol molecules (used as H-donor) by a S<sub>N</sub>2 mechanism. |
| first_indexed | 2024-04-13T07:38:32Z |
| format | Article |
| id | doaj.art-e52272b4bd5b4ad0aecc8231544e7c30 |
| institution | Directory Open Access Journal |
| issn | 1422-0067 |
| language | English |
| last_indexed | 2024-04-13T07:38:32Z |
| publishDate | 2019-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-e52272b4bd5b4ad0aecc8231544e7c302022-12-22T02:56:00ZengMDPI AGInternational Journal of Molecular Sciences1422-00672019-02-0120482810.3390/ijms20040828ijms20040828Influence 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 ReductionRaquel López-Asensio0Carmen Pilar Jiménez Gómez1Cristina García Sancho2Ramón Moreno-Tost3Juan Antonio Cecilia4Pedro Maireles-Torres5Departamento de Química Inorgánica, Cristalografía y Mineralogía, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Química Inorgánica, Cristalografía y Mineralogía, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, 29071 Málaga, SpainZr-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<sub>2</sub> adsorption-desorption at −196 °C, NH<sub>3</sub> thermoprogrammed desorption (NH<sub>3</sub>⁻TPD), CO<sub>2</sub> thermoprogrammed desorption (CO<sub>2</sub>⁻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>i</i>-propyl furfuryl and difurfuryl ethers, coming from etherification between furfuryl alcohol (FOL) and isopropanol molecules (used as H-donor) by a S<sub>N</sub>2 mechanism.https://www.mdpi.com/1422-0067/20/4/828furfuralfurfuryl alcoholalkylfurfuryl etherMPV reactionhydrogen catalytic transferZr-SBA-15structure modifying agents |
| spellingShingle | Raquel López-Asensio Carmen Pilar Jiménez Gómez Cristina García Sancho Ramón Moreno-Tost Juan Antonio Cecilia Pedro Maireles-Torres 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 International Journal of Molecular Sciences furfural furfuryl alcohol alkylfurfuryl ether MPV reaction hydrogen catalytic transfer Zr-SBA-15 structure modifying agents |
| 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 | furfural furfuryl alcohol alkylfurfuryl ether MPV reaction hydrogen catalytic transfer Zr-SBA-15 structure modifying agents |
| url | https://www.mdpi.com/1422-0067/20/4/828 |
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