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Full use of factors promoting catalytic performance of chitosan supported manganese porphyrin

In order to make full use of the impact of internal and external factors on the performance of title catalyst for ethyl benzene oxidation, the key internal influencing factors on the catalytic performance were modulated by coordinating and grafting manganese porphyrin to mesoporous and macroporous c...

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Autores principales: Mo, Lin-Qiang, Huang, Xian-Fei, Wang, Gao-Cai, Huang, Guan, Liu, Peng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7445284/
https://www.ncbi.nlm.nih.gov/pubmed/32839460
http://dx.doi.org/10.1038/s41598-020-70210-y
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author Mo, Lin-Qiang
Huang, Xian-Fei
Wang, Gao-Cai
Huang, Guan
Liu, Peng
author_facet Mo, Lin-Qiang
Huang, Xian-Fei
Wang, Gao-Cai
Huang, Guan
Liu, Peng
author_sort Mo, Lin-Qiang
collection PubMed
description In order to make full use of the impact of internal and external factors on the performance of title catalyst for ethyl benzene oxidation, the key internal influencing factors on the catalytic performance were modulated by coordinating and grafting manganese porphyrin to mesoporous and macroporous chitosan, and the important external factors (i.e. oxidation reaction conditions) were optimized using Response Surface Methodology. Under the Response Surface Methodology optimized oxidation reaction conditions (176.56 °C, 0.59 MPa, and 0.25 mg amount of manganese porphyrin), the catalyst could be used at least five times. The ethyl benzene conversion, catalyst turnover numbers, and yields reached up to 51.2%, 4.37 × 10(6) and 36.4% in average, respectively. Compared with the other optimized oxidation reaction conditions, the corresponding values increased 17%, 26% and 53%. Relative to the manganese porphyrin, the catalytic performance and efficiency of the immobilized catalyst had notably increased.
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spelling pubmed-74452842020-08-26 Full use of factors promoting catalytic performance of chitosan supported manganese porphyrin Mo, Lin-Qiang Huang, Xian-Fei Wang, Gao-Cai Huang, Guan Liu, Peng Sci Rep Article In order to make full use of the impact of internal and external factors on the performance of title catalyst for ethyl benzene oxidation, the key internal influencing factors on the catalytic performance were modulated by coordinating and grafting manganese porphyrin to mesoporous and macroporous chitosan, and the important external factors (i.e. oxidation reaction conditions) were optimized using Response Surface Methodology. Under the Response Surface Methodology optimized oxidation reaction conditions (176.56 °C, 0.59 MPa, and 0.25 mg amount of manganese porphyrin), the catalyst could be used at least five times. The ethyl benzene conversion, catalyst turnover numbers, and yields reached up to 51.2%, 4.37 × 10(6) and 36.4% in average, respectively. Compared with the other optimized oxidation reaction conditions, the corresponding values increased 17%, 26% and 53%. Relative to the manganese porphyrin, the catalytic performance and efficiency of the immobilized catalyst had notably increased. Nature Publishing Group UK 2020-08-24 /pmc/articles/PMC7445284/ /pubmed/32839460 http://dx.doi.org/10.1038/s41598-020-70210-y Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Mo, Lin-Qiang
Huang, Xian-Fei
Wang, Gao-Cai
Huang, Guan
Liu, Peng
Full use of factors promoting catalytic performance of chitosan supported manganese porphyrin
title Full use of factors promoting catalytic performance of chitosan supported manganese porphyrin
title_full Full use of factors promoting catalytic performance of chitosan supported manganese porphyrin
title_fullStr Full use of factors promoting catalytic performance of chitosan supported manganese porphyrin
title_full_unstemmed Full use of factors promoting catalytic performance of chitosan supported manganese porphyrin
title_short Full use of factors promoting catalytic performance of chitosan supported manganese porphyrin
title_sort full use of factors promoting catalytic performance of chitosan supported manganese porphyrin
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7445284/
https://www.ncbi.nlm.nih.gov/pubmed/32839460
http://dx.doi.org/10.1038/s41598-020-70210-y
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