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Selective oxidation of n-buthanol to butyraldehyde over MnCo(2)O(4) spinel oxides

Partial oxidation of n-butanol to butyraldehyde, propionaldehyde and acetaldehyde over MnCo(2)O(4) spinel oxides has been investigated. Physicochemical characteristics of samples, prepared by co-precipitation with different amounts of precipitating agent, were studied by XRD, N(2) adsorption–desorpt...

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Autores principales: Mitran, Gheorghita, Chen, Shaojiang, Seo, Dong-Kyun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9055287/
https://www.ncbi.nlm.nih.gov/pubmed/35517452
http://dx.doi.org/10.1039/d0ra04738d
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author Mitran, Gheorghita
Chen, Shaojiang
Seo, Dong-Kyun
author_facet Mitran, Gheorghita
Chen, Shaojiang
Seo, Dong-Kyun
author_sort Mitran, Gheorghita
collection PubMed
description Partial oxidation of n-butanol to butyraldehyde, propionaldehyde and acetaldehyde over MnCo(2)O(4) spinel oxides has been investigated. Physicochemical characteristics of samples, prepared by co-precipitation with different amounts of precipitating agent, were studied by XRD, N(2) adsorption–desorption isotherms, FT-IR, SEM and XPS. The ratio between the precipitating agent and the precursors has a considerable influence both on the structure, which is evidenced by XRD, due to switching from a crystalline structure to an amorphous one and on the surface (XPS) by an obvious change in the ratio Co(3+)/Co(2+) and Mn(4+)/Mn(3+) and in the content of oxygen vacancies. The reaction rate is not influenced by the oxygen pressure, emphasizing that n-butanol oxidation occurs through the Mars van Krevelen mechanism. The conversion of n-butanol and yield of butyraldehyde are directly proportional to the cobalt content on the surface, while the propionaldehyde yield is proportional to the Mn(4+)/Mn(3+) ratio.
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spelling pubmed-90552872022-05-04 Selective oxidation of n-buthanol to butyraldehyde over MnCo(2)O(4) spinel oxides Mitran, Gheorghita Chen, Shaojiang Seo, Dong-Kyun RSC Adv Chemistry Partial oxidation of n-butanol to butyraldehyde, propionaldehyde and acetaldehyde over MnCo(2)O(4) spinel oxides has been investigated. Physicochemical characteristics of samples, prepared by co-precipitation with different amounts of precipitating agent, were studied by XRD, N(2) adsorption–desorption isotherms, FT-IR, SEM and XPS. The ratio between the precipitating agent and the precursors has a considerable influence both on the structure, which is evidenced by XRD, due to switching from a crystalline structure to an amorphous one and on the surface (XPS) by an obvious change in the ratio Co(3+)/Co(2+) and Mn(4+)/Mn(3+) and in the content of oxygen vacancies. The reaction rate is not influenced by the oxygen pressure, emphasizing that n-butanol oxidation occurs through the Mars van Krevelen mechanism. The conversion of n-butanol and yield of butyraldehyde are directly proportional to the cobalt content on the surface, while the propionaldehyde yield is proportional to the Mn(4+)/Mn(3+) ratio. The Royal Society of Chemistry 2020-07-02 /pmc/articles/PMC9055287/ /pubmed/35517452 http://dx.doi.org/10.1039/d0ra04738d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Mitran, Gheorghita
Chen, Shaojiang
Seo, Dong-Kyun
Selective oxidation of n-buthanol to butyraldehyde over MnCo(2)O(4) spinel oxides
title Selective oxidation of n-buthanol to butyraldehyde over MnCo(2)O(4) spinel oxides
title_full Selective oxidation of n-buthanol to butyraldehyde over MnCo(2)O(4) spinel oxides
title_fullStr Selective oxidation of n-buthanol to butyraldehyde over MnCo(2)O(4) spinel oxides
title_full_unstemmed Selective oxidation of n-buthanol to butyraldehyde over MnCo(2)O(4) spinel oxides
title_short Selective oxidation of n-buthanol to butyraldehyde over MnCo(2)O(4) spinel oxides
title_sort selective oxidation of n-buthanol to butyraldehyde over mnco(2)o(4) spinel oxides
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9055287/
https://www.ncbi.nlm.nih.gov/pubmed/35517452
http://dx.doi.org/10.1039/d0ra04738d
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AT chenshaojiang selectiveoxidationofnbuthanoltobutyraldehydeovermnco2o4spineloxides
AT seodongkyun selectiveoxidationofnbuthanoltobutyraldehydeovermnco2o4spineloxides