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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...

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Autores principales: Gavrilova, Natalia, Myachina, Maria, Nazarov, Victor, Skudin, Valery
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
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.
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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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