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Construction of a Keggin heteropolyacid/Ni-MOF catalyst for esterification of fatty acids
This work reports the one-pot solvothermal synthesis of a Keggin heteropolyacid (phosphomolybdic acid, tungstophosphoric acid, or silicotungstic acid) immobilized on Ni-MOF composite catalysts for esterification of fatty acids, and the composites were further analyzed by XRD, FTIR, NH(3)-TPD, SEM, T...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9042312/ https://www.ncbi.nlm.nih.gov/pubmed/35497569 http://dx.doi.org/10.1039/d1ra06023f |
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author | Zhang, Qiuyun Luo, Qizhi Wu, Yaping Yu, Rongfei Cheng, Jingsong Zhang, Yutao |
author_facet | Zhang, Qiuyun Luo, Qizhi Wu, Yaping Yu, Rongfei Cheng, Jingsong Zhang, Yutao |
author_sort | Zhang, Qiuyun |
collection | PubMed |
description | This work reports the one-pot solvothermal synthesis of a Keggin heteropolyacid (phosphomolybdic acid, tungstophosphoric acid, or silicotungstic acid) immobilized on Ni-MOF composite catalysts for esterification of fatty acids, and the composites were further analyzed by XRD, FTIR, NH(3)-TPD, SEM, TEM, N(2) adsorption/desorption, and XPS. Among the contrastive syntheses (i.e., HPW/Ni-MOF, HSiW/Ni-MOF, and HPMo/Ni-MOF), HPMo/Ni-MOF exhibits the most active catalyst toward fatty acids esterification, and the characterization results also revealed that HPMo/Ni-MOF has a strong acidity, large specific surface area, and appropriate average pore size. More significantly, this catalyst exhibits a good catalytic performance (86.1% conversion) during esterification under the optimized reaction conditions, and the HPMo/Ni-MOF catalyst can remain stable after the tenth cycle with a conversion of 73.5%. Intriguingly, the esterification reaction kinetics was studied, and the activation energy was found to be 64.6 kJ mol(−1). The results indicated that the esterification of fatty acids using the HPMo/Ni-MOF catalyst is a chemically controlled reaction. |
format | Online Article Text |
id | pubmed-9042312 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90423122022-04-28 Construction of a Keggin heteropolyacid/Ni-MOF catalyst for esterification of fatty acids Zhang, Qiuyun Luo, Qizhi Wu, Yaping Yu, Rongfei Cheng, Jingsong Zhang, Yutao RSC Adv Chemistry This work reports the one-pot solvothermal synthesis of a Keggin heteropolyacid (phosphomolybdic acid, tungstophosphoric acid, or silicotungstic acid) immobilized on Ni-MOF composite catalysts for esterification of fatty acids, and the composites were further analyzed by XRD, FTIR, NH(3)-TPD, SEM, TEM, N(2) adsorption/desorption, and XPS. Among the contrastive syntheses (i.e., HPW/Ni-MOF, HSiW/Ni-MOF, and HPMo/Ni-MOF), HPMo/Ni-MOF exhibits the most active catalyst toward fatty acids esterification, and the characterization results also revealed that HPMo/Ni-MOF has a strong acidity, large specific surface area, and appropriate average pore size. More significantly, this catalyst exhibits a good catalytic performance (86.1% conversion) during esterification under the optimized reaction conditions, and the HPMo/Ni-MOF catalyst can remain stable after the tenth cycle with a conversion of 73.5%. Intriguingly, the esterification reaction kinetics was studied, and the activation energy was found to be 64.6 kJ mol(−1). The results indicated that the esterification of fatty acids using the HPMo/Ni-MOF catalyst is a chemically controlled reaction. The Royal Society of Chemistry 2021-10-13 /pmc/articles/PMC9042312/ /pubmed/35497569 http://dx.doi.org/10.1039/d1ra06023f Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Zhang, Qiuyun Luo, Qizhi Wu, Yaping Yu, Rongfei Cheng, Jingsong Zhang, Yutao Construction of a Keggin heteropolyacid/Ni-MOF catalyst for esterification of fatty acids |
title | Construction of a Keggin heteropolyacid/Ni-MOF catalyst for esterification of fatty acids |
title_full | Construction of a Keggin heteropolyacid/Ni-MOF catalyst for esterification of fatty acids |
title_fullStr | Construction of a Keggin heteropolyacid/Ni-MOF catalyst for esterification of fatty acids |
title_full_unstemmed | Construction of a Keggin heteropolyacid/Ni-MOF catalyst for esterification of fatty acids |
title_short | Construction of a Keggin heteropolyacid/Ni-MOF catalyst for esterification of fatty acids |
title_sort | construction of a keggin heteropolyacid/ni-mof catalyst for esterification of fatty acids |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9042312/ https://www.ncbi.nlm.nih.gov/pubmed/35497569 http://dx.doi.org/10.1039/d1ra06023f |
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