Spontaneous oxygen isotope exchange between carbon dioxide andnnatural clays: Refined rate constants referenced to TiO2 (anatase/rutile)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F17%3A00466724" target="_blank" >RIV/61388955:_____/17:00466724 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.clay.2016.11.031" target="_blank" >http://dx.doi.org/10.1016/j.clay.2016.11.031</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.clay.2016.11.031" target="_blank" >10.1016/j.clay.2016.11.031</a>

Result language
angličtina
Original language name
Spontaneous oxygen isotope exchange between carbon dioxide andnnatural clays: Refined rate constants referenced to TiO2 (anatase/rutile)
Original language description
In a series of our previously published papers, we reported a broad range of experiments and theoretical studies devoted to the interaction of carbon dioxide with the anatase titania surface. In the current study, we demonstrate oxygen mobility between gaseous carbon dioxide and solid natural clay minerals. This surprising feature implies that such behaviour is typical not only for titania but also for oxides with different chemical composition and structure. The oxygen mobility was demonstrated by the interaction of isotopically labelled carbon dioxide – C18O2 – with the mineral surfaces. In most cases, we observed rapid oxygen exchange between the gas and the mineral. It was therefore discovered that carbon dioxide is more active than was previously thought because it exchanges its oxygen atoms with inorganic surfaces. Moreover, this feature seems to be very significant in natural clays of various compositions. This finding points not only towards high activity of CO2 but also towards high surface reactivity of clays, which are quite common surface minerals on Earth and other planets.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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