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Activation and splitting of carbon dioxide on the surface of an inorganic electride material
Activation of carbon dioxide is the most important step in its conversion into valuable chemicals. Surfaces of stable oxide with a low work function may be promising for this purpose. Here we report that the surfaces of the inorganic electride [Ca(24)Al(28)O(64)](4+)(e(−))(4) activate and split carb...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Pub. Group
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3763491/ https://www.ncbi.nlm.nih.gov/pubmed/23986101 http://dx.doi.org/10.1038/ncomms3378 |
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author | Toda, Yoshitake Hirayama, Hiroyuki Kuganathan, Navaratnarajah Torrisi, Antonio Sushko, Peter V. Hosono, Hideo |
author_facet | Toda, Yoshitake Hirayama, Hiroyuki Kuganathan, Navaratnarajah Torrisi, Antonio Sushko, Peter V. Hosono, Hideo |
author_sort | Toda, Yoshitake |
collection | PubMed |
description | Activation of carbon dioxide is the most important step in its conversion into valuable chemicals. Surfaces of stable oxide with a low work function may be promising for this purpose. Here we report that the surfaces of the inorganic electride [Ca(24)Al(28)O(64)](4+)(e(−))(4) activate and split carbon dioxide at room temperature. This behaviour is attributed to a high concentration of localized electrons in the near-surface region and a corrugation of the surface that can trap oxygen atoms and strained carbon monoxide and carbon dioxide molecules. The [Ca(24)Al(28)O(64)](4+)(e(−))(4) surface exposed to carbon dioxide is studied using temperature-programmed desorption, and spectroscopic methods. The results of these measurements, corroborated with ab initio simulations, show that both carbon monoxide and carbon dioxide adsorb on the [Ca(24)Al(28)O(64)](4+)(e(−))(4) surface at RT and above and adopt unusual configurations that result in desorption of molecular carbon monoxide and atomic oxygen upon heating. |
format | Online Article Text |
id | pubmed-3763491 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Nature Pub. Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-37634912013-09-09 Activation and splitting of carbon dioxide on the surface of an inorganic electride material Toda, Yoshitake Hirayama, Hiroyuki Kuganathan, Navaratnarajah Torrisi, Antonio Sushko, Peter V. Hosono, Hideo Nat Commun Article Activation of carbon dioxide is the most important step in its conversion into valuable chemicals. Surfaces of stable oxide with a low work function may be promising for this purpose. Here we report that the surfaces of the inorganic electride [Ca(24)Al(28)O(64)](4+)(e(−))(4) activate and split carbon dioxide at room temperature. This behaviour is attributed to a high concentration of localized electrons in the near-surface region and a corrugation of the surface that can trap oxygen atoms and strained carbon monoxide and carbon dioxide molecules. The [Ca(24)Al(28)O(64)](4+)(e(−))(4) surface exposed to carbon dioxide is studied using temperature-programmed desorption, and spectroscopic methods. The results of these measurements, corroborated with ab initio simulations, show that both carbon monoxide and carbon dioxide adsorb on the [Ca(24)Al(28)O(64)](4+)(e(−))(4) surface at RT and above and adopt unusual configurations that result in desorption of molecular carbon monoxide and atomic oxygen upon heating. Nature Pub. Group 2013-08-29 /pmc/articles/PMC3763491/ /pubmed/23986101 http://dx.doi.org/10.1038/ncomms3378 Text en Copyright © 2013, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ |
spellingShingle | Article Toda, Yoshitake Hirayama, Hiroyuki Kuganathan, Navaratnarajah Torrisi, Antonio Sushko, Peter V. Hosono, Hideo Activation and splitting of carbon dioxide on the surface of an inorganic electride material |
title | Activation and splitting of carbon dioxide on the surface of an inorganic electride material |
title_full | Activation and splitting of carbon dioxide on the surface of an inorganic electride material |
title_fullStr | Activation and splitting of carbon dioxide on the surface of an inorganic electride material |
title_full_unstemmed | Activation and splitting of carbon dioxide on the surface of an inorganic electride material |
title_short | Activation and splitting of carbon dioxide on the surface of an inorganic electride material |
title_sort | activation and splitting of carbon dioxide on the surface of an inorganic electride material |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3763491/ https://www.ncbi.nlm.nih.gov/pubmed/23986101 http://dx.doi.org/10.1038/ncomms3378 |
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