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The Effects of Various Parameters of the Microwave-Assisted Solvothermal Synthesis on the Specific Surface Area and Catalytic Performance of MgF(2) Nanoparticles
High-specific-surface-area MgF(2) was prepared by microwave-assisted solvothermal synthesis. The influences of the solvent and the magnesium precursors, and the calcination atmospheres, on the nanoparticle sizes and specific surface areas, estimated by X-Ray Powder Diffraction, N(2) sorption and TEM...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475908/ https://www.ncbi.nlm.nih.gov/pubmed/32806738 http://dx.doi.org/10.3390/ma13163566 |
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author | Wang, Yawen Gohari Bajestani, Zahra Lhoste, Jérôme Auguste, Sandy Hémon-Ribaud, Annie Body, Monique Legein, Christophe Maisonneuve, Vincent Guiet, Amandine Brunet, Sylvette |
author_facet | Wang, Yawen Gohari Bajestani, Zahra Lhoste, Jérôme Auguste, Sandy Hémon-Ribaud, Annie Body, Monique Legein, Christophe Maisonneuve, Vincent Guiet, Amandine Brunet, Sylvette |
author_sort | Wang, Yawen |
collection | PubMed |
description | High-specific-surface-area MgF(2) was prepared by microwave-assisted solvothermal synthesis. The influences of the solvent and the magnesium precursors, and the calcination atmospheres, on the nanoparticle sizes and specific surface areas, estimated by X-Ray Powder Diffraction, N(2) sorption and TEM analyses, were investigated. Nanocrystallized (~7 nm) magnesium partially hydroxylated fluorides (MgF(2−x)(OH)(x)) with significant specific surface areas between 290 and 330 m(2)∙g(−1) were obtained. After activation under gaseous HF, MgF(2−x)(OH)(x) catalysts underwent a large decrease of both their surface area and their hydroxide, rates as shown by their (19)F and (1)H solid-state NMR spectra. Expect for MgF(2) prepared from the acetate precursor, an activity of 30–32 mmol/h∙g was obtained which was about 40% higher compared with that of MgF(2) prepared using Trifluoroacetate method (21.6 mmol/h∙g). |
format | Online Article Text |
id | pubmed-7475908 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-74759082020-09-17 The Effects of Various Parameters of the Microwave-Assisted Solvothermal Synthesis on the Specific Surface Area and Catalytic Performance of MgF(2) Nanoparticles Wang, Yawen Gohari Bajestani, Zahra Lhoste, Jérôme Auguste, Sandy Hémon-Ribaud, Annie Body, Monique Legein, Christophe Maisonneuve, Vincent Guiet, Amandine Brunet, Sylvette Materials (Basel) Article High-specific-surface-area MgF(2) was prepared by microwave-assisted solvothermal synthesis. The influences of the solvent and the magnesium precursors, and the calcination atmospheres, on the nanoparticle sizes and specific surface areas, estimated by X-Ray Powder Diffraction, N(2) sorption and TEM analyses, were investigated. Nanocrystallized (~7 nm) magnesium partially hydroxylated fluorides (MgF(2−x)(OH)(x)) with significant specific surface areas between 290 and 330 m(2)∙g(−1) were obtained. After activation under gaseous HF, MgF(2−x)(OH)(x) catalysts underwent a large decrease of both their surface area and their hydroxide, rates as shown by their (19)F and (1)H solid-state NMR spectra. Expect for MgF(2) prepared from the acetate precursor, an activity of 30–32 mmol/h∙g was obtained which was about 40% higher compared with that of MgF(2) prepared using Trifluoroacetate method (21.6 mmol/h∙g). MDPI 2020-08-12 /pmc/articles/PMC7475908/ /pubmed/32806738 http://dx.doi.org/10.3390/ma13163566 Text en © 2020 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 Wang, Yawen Gohari Bajestani, Zahra Lhoste, Jérôme Auguste, Sandy Hémon-Ribaud, Annie Body, Monique Legein, Christophe Maisonneuve, Vincent Guiet, Amandine Brunet, Sylvette The Effects of Various Parameters of the Microwave-Assisted Solvothermal Synthesis on the Specific Surface Area and Catalytic Performance of MgF(2) Nanoparticles |
title | The Effects of Various Parameters of the Microwave-Assisted Solvothermal Synthesis on the Specific Surface Area and Catalytic Performance of MgF(2) Nanoparticles |
title_full | The Effects of Various Parameters of the Microwave-Assisted Solvothermal Synthesis on the Specific Surface Area and Catalytic Performance of MgF(2) Nanoparticles |
title_fullStr | The Effects of Various Parameters of the Microwave-Assisted Solvothermal Synthesis on the Specific Surface Area and Catalytic Performance of MgF(2) Nanoparticles |
title_full_unstemmed | The Effects of Various Parameters of the Microwave-Assisted Solvothermal Synthesis on the Specific Surface Area and Catalytic Performance of MgF(2) Nanoparticles |
title_short | The Effects of Various Parameters of the Microwave-Assisted Solvothermal Synthesis on the Specific Surface Area and Catalytic Performance of MgF(2) Nanoparticles |
title_sort | effects of various parameters of the microwave-assisted solvothermal synthesis on the specific surface area and catalytic performance of mgf(2) nanoparticles |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475908/ https://www.ncbi.nlm.nih.gov/pubmed/32806738 http://dx.doi.org/10.3390/ma13163566 |
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