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Simple Synthesis of Molybdenum Carbides from Molybdenum Blue Nanoparticles
In recent years, much attention has been paid to the development of a new flexible and variable method for molybdenum carbide (Mo(2)C) synthesis. This work reports the applicability of nano-size clusters of molybdenum blue to molybdenum carbide production by thermal treatment of molybdenum blue xero...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8066837/ https://www.ncbi.nlm.nih.gov/pubmed/33808113 http://dx.doi.org/10.3390/nano11040873 |
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author | Gavrilova, Natalia Myachina, Maria Nazarov, Victor Skudin, Valery |
author_facet | Gavrilova, Natalia Myachina, Maria Nazarov, Victor Skudin, Valery |
author_sort | Gavrilova, Natalia |
collection | PubMed |
description | In recent years, much attention has been paid to the development of a new flexible and variable method for molybdenum carbide (Mo(2)C) synthesis. This work reports the applicability of nano-size clusters of molybdenum blue to molybdenum carbide production by thermal treatment of molybdenum blue xerogels in an inert atmosphere. The method developed made it possible to vary the type (glucose, hydroquinone) and content of the organic reducing agent (molar ratio R/Mo). The effect of these parameters on the phase composition and specific surface area of molybdenum carbides and their catalytic activity was investigated. TEM, UV–VIS spectroscopy, DTA, SEM, XRD, and nitrogen adsorption were performed to characterize nanoparticles and molybdenum carbide. The results showed that, depending on the synthesis conditions, variants of molybdenum carbide can be formed: α-Mo(2)C, η-MoC, or γ-MoC. The synthesized samples had a high specific surface area (7.1–203.0 m(2)/g) and meso- and microporosity. The samples also showed high catalytic activity during the dry reforming of methane. The proposed synthesis method is simple and variable and can be successfully used to obtain both Mo(2)C-based powder and supports catalysts. |
format | Online Article Text |
id | pubmed-8066837 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-80668372021-04-25 Simple Synthesis of Molybdenum Carbides from Molybdenum Blue Nanoparticles Gavrilova, Natalia Myachina, Maria Nazarov, Victor Skudin, Valery Nanomaterials (Basel) Article In recent years, much attention has been paid to the development of a new flexible and variable method for molybdenum carbide (Mo(2)C) synthesis. This work reports the applicability of nano-size clusters of molybdenum blue to molybdenum carbide production by thermal treatment of molybdenum blue xerogels in an inert atmosphere. The method developed made it possible to vary the type (glucose, hydroquinone) and content of the organic reducing agent (molar ratio R/Mo). The effect of these parameters on the phase composition and specific surface area of molybdenum carbides and their catalytic activity was investigated. TEM, UV–VIS spectroscopy, DTA, SEM, XRD, and nitrogen adsorption were performed to characterize nanoparticles and molybdenum carbide. The results showed that, depending on the synthesis conditions, variants of molybdenum carbide can be formed: α-Mo(2)C, η-MoC, or γ-MoC. The synthesized samples had a high specific surface area (7.1–203.0 m(2)/g) and meso- and microporosity. The samples also showed high catalytic activity during the dry reforming of methane. The proposed synthesis method is simple and variable and can be successfully used to obtain both Mo(2)C-based powder and supports catalysts. MDPI 2021-03-30 /pmc/articles/PMC8066837/ /pubmed/33808113 http://dx.doi.org/10.3390/nano11040873 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) ). |
spellingShingle | Article Gavrilova, Natalia Myachina, Maria Nazarov, Victor Skudin, Valery Simple Synthesis of Molybdenum Carbides from Molybdenum Blue Nanoparticles |
title | Simple Synthesis of Molybdenum Carbides from Molybdenum Blue Nanoparticles |
title_full | Simple Synthesis of Molybdenum Carbides from Molybdenum Blue Nanoparticles |
title_fullStr | Simple Synthesis of Molybdenum Carbides from Molybdenum Blue Nanoparticles |
title_full_unstemmed | Simple Synthesis of Molybdenum Carbides from Molybdenum Blue Nanoparticles |
title_short | Simple Synthesis of Molybdenum Carbides from Molybdenum Blue Nanoparticles |
title_sort | simple synthesis of molybdenum carbides from molybdenum blue nanoparticles |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8066837/ https://www.ncbi.nlm.nih.gov/pubmed/33808113 http://dx.doi.org/10.3390/nano11040873 |
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