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Unveiling redox mechanism at the iron centers in the mechanochemically activated conversion of CO(2) in the presence of olivine
The transformation of olivine during the conversion of CO(2) to light hydrocarbons activated by mechanochemical treatments at different impact frequencies was studied by a combination of several complementary characterization methods including X-ray diffraction, Raman and (57)Fe Mössbauer spectrosco...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8863097/ https://www.ncbi.nlm.nih.gov/pubmed/35221374 http://dx.doi.org/10.1007/s10853-022-06962-x |
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author | Farina, Valeria Simula, Maria Domenica Taras, Alessandro Cappai, Luca Sougrati, Moulay Tahar Mulas, Gabriele Garroni, Sebastiano Enzo, Stefano Stievano, Lorenzo |
author_facet | Farina, Valeria Simula, Maria Domenica Taras, Alessandro Cappai, Luca Sougrati, Moulay Tahar Mulas, Gabriele Garroni, Sebastiano Enzo, Stefano Stievano, Lorenzo |
author_sort | Farina, Valeria |
collection | PubMed |
description | The transformation of olivine during the conversion of CO(2) to light hydrocarbons activated by mechanochemical treatments at different impact frequencies was studied by a combination of several complementary characterization methods including X-ray diffraction, Raman and (57)Fe Mössbauer spectroscopy. Several olivine samples were studied as a function of the milling time, indicating the gradual transformation of Fe(II)-containing olivine into new Fe(III)-containing weathering products including iron oxides, magnesium iron carbonates and silicates. The results presented here complement those of a previous study on the weathering process of olivine promoted by mechanochemical activation, by demonstrating the role of the redox activity of the iron species during the activation process. These additional spectroscopic results allow us to thoroughly understand the complex weathering mechanism and to correlate it with the efficiency of the CO(2) conversion and storage properties of mechanochemically activated olivine. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s10853-022-06962-x. |
format | Online Article Text |
id | pubmed-8863097 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-88630972022-02-23 Unveiling redox mechanism at the iron centers in the mechanochemically activated conversion of CO(2) in the presence of olivine Farina, Valeria Simula, Maria Domenica Taras, Alessandro Cappai, Luca Sougrati, Moulay Tahar Mulas, Gabriele Garroni, Sebastiano Enzo, Stefano Stievano, Lorenzo J Mater Sci Materials for Energy Storage The transformation of olivine during the conversion of CO(2) to light hydrocarbons activated by mechanochemical treatments at different impact frequencies was studied by a combination of several complementary characterization methods including X-ray diffraction, Raman and (57)Fe Mössbauer spectroscopy. Several olivine samples were studied as a function of the milling time, indicating the gradual transformation of Fe(II)-containing olivine into new Fe(III)-containing weathering products including iron oxides, magnesium iron carbonates and silicates. The results presented here complement those of a previous study on the weathering process of olivine promoted by mechanochemical activation, by demonstrating the role of the redox activity of the iron species during the activation process. These additional spectroscopic results allow us to thoroughly understand the complex weathering mechanism and to correlate it with the efficiency of the CO(2) conversion and storage properties of mechanochemically activated olivine. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s10853-022-06962-x. Springer US 2022-02-22 2022 /pmc/articles/PMC8863097/ /pubmed/35221374 http://dx.doi.org/10.1007/s10853-022-06962-x Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Materials for Energy Storage Farina, Valeria Simula, Maria Domenica Taras, Alessandro Cappai, Luca Sougrati, Moulay Tahar Mulas, Gabriele Garroni, Sebastiano Enzo, Stefano Stievano, Lorenzo Unveiling redox mechanism at the iron centers in the mechanochemically activated conversion of CO(2) in the presence of olivine |
title | Unveiling redox mechanism at the iron centers in the mechanochemically activated conversion of CO(2) in the presence of olivine |
title_full | Unveiling redox mechanism at the iron centers in the mechanochemically activated conversion of CO(2) in the presence of olivine |
title_fullStr | Unveiling redox mechanism at the iron centers in the mechanochemically activated conversion of CO(2) in the presence of olivine |
title_full_unstemmed | Unveiling redox mechanism at the iron centers in the mechanochemically activated conversion of CO(2) in the presence of olivine |
title_short | Unveiling redox mechanism at the iron centers in the mechanochemically activated conversion of CO(2) in the presence of olivine |
title_sort | unveiling redox mechanism at the iron centers in the mechanochemically activated conversion of co(2) in the presence of olivine |
topic | Materials for Energy Storage |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8863097/ https://www.ncbi.nlm.nih.gov/pubmed/35221374 http://dx.doi.org/10.1007/s10853-022-06962-x |
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