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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...

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Autores principales: Wang, Yawen, Gohari Bajestani, Zahra, Lhoste, Jérôme, Auguste, Sandy, Hémon-Ribaud, Annie, Body, Monique, Legein, Christophe, Maisonneuve, Vincent, Guiet, Amandine, Brunet, Sylvette
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
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).
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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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