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Mechanism of the noncatalytic oxidation of soot using in situ transmission electron microscopy
Soot generation is a major challenge in industries. The elimination of soot is particularly crucial to reduce pollutant emissions and boost carbon conversion. The mechanisms for soot oxidation are complex, with quantified models obtained under in situ conditions still missing. We prepare soot sample...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10558545/ https://www.ncbi.nlm.nih.gov/pubmed/37802991 http://dx.doi.org/10.1038/s41467-023-41726-4 |
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author | Gao, Ming Jang, Yongjun Ding, Lu Gao, Yunfei Dai, Sheng Dai, Zhenghua Yu, Guangsuo Yang, Wenming Wang, Fuchen |
author_facet | Gao, Ming Jang, Yongjun Ding, Lu Gao, Yunfei Dai, Sheng Dai, Zhenghua Yu, Guangsuo Yang, Wenming Wang, Fuchen |
author_sort | Gao, Ming |
collection | PubMed |
description | Soot generation is a major challenge in industries. The elimination of soot is particularly crucial to reduce pollutant emissions and boost carbon conversion. The mechanisms for soot oxidation are complex, with quantified models obtained under in situ conditions still missing. We prepare soot samples via noncatalytic partial oxidation of methane. Various oxidation models are established based on the results of in situ transmission electron microscopy experiments. A quantified maturity parameter is proposed and used to categorize the soot particles according to the nanostructure at various maturity levels, which in turn lead to different oxidation mechanisms. To tackle the challenges in the kinetic analysis of soot aggregates, a simplification model is proposed and soot oxidation rates are quantified. In addition, a special core-shell separation model is revealed through in situ analysis and kinetic studies. In this study, we obtain important quantified models for soot oxidation under in situ conditions. |
format | Online Article Text |
id | pubmed-10558545 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-105585452023-10-08 Mechanism of the noncatalytic oxidation of soot using in situ transmission electron microscopy Gao, Ming Jang, Yongjun Ding, Lu Gao, Yunfei Dai, Sheng Dai, Zhenghua Yu, Guangsuo Yang, Wenming Wang, Fuchen Nat Commun Article Soot generation is a major challenge in industries. The elimination of soot is particularly crucial to reduce pollutant emissions and boost carbon conversion. The mechanisms for soot oxidation are complex, with quantified models obtained under in situ conditions still missing. We prepare soot samples via noncatalytic partial oxidation of methane. Various oxidation models are established based on the results of in situ transmission electron microscopy experiments. A quantified maturity parameter is proposed and used to categorize the soot particles according to the nanostructure at various maturity levels, which in turn lead to different oxidation mechanisms. To tackle the challenges in the kinetic analysis of soot aggregates, a simplification model is proposed and soot oxidation rates are quantified. In addition, a special core-shell separation model is revealed through in situ analysis and kinetic studies. In this study, we obtain important quantified models for soot oxidation under in situ conditions. Nature Publishing Group UK 2023-10-06 /pmc/articles/PMC10558545/ /pubmed/37802991 http://dx.doi.org/10.1038/s41467-023-41726-4 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Gao, Ming Jang, Yongjun Ding, Lu Gao, Yunfei Dai, Sheng Dai, Zhenghua Yu, Guangsuo Yang, Wenming Wang, Fuchen Mechanism of the noncatalytic oxidation of soot using in situ transmission electron microscopy |
title | Mechanism of the noncatalytic oxidation of soot using in situ transmission electron microscopy |
title_full | Mechanism of the noncatalytic oxidation of soot using in situ transmission electron microscopy |
title_fullStr | Mechanism of the noncatalytic oxidation of soot using in situ transmission electron microscopy |
title_full_unstemmed | Mechanism of the noncatalytic oxidation of soot using in situ transmission electron microscopy |
title_short | Mechanism of the noncatalytic oxidation of soot using in situ transmission electron microscopy |
title_sort | mechanism of the noncatalytic oxidation of soot using in situ transmission electron microscopy |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10558545/ https://www.ncbi.nlm.nih.gov/pubmed/37802991 http://dx.doi.org/10.1038/s41467-023-41726-4 |
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