Acidic Hydrogen Enhanced Photocatalytic Reduction of CO2 on Planetary Surfaces

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00536891" target="_blank" >RIV/61388955:_____/20:00536891 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/20:10419521
Result on the web
<a href="http://hdl.handle.net/11104/0314646" target="_blank" >http://hdl.handle.net/11104/0314646</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsearthspacechem.0c00039" target="_blank" >10.1021/acsearthspacechem.0c00039</a>

Result language
angličtina
Original language name
Acidic Hydrogen Enhanced Photocatalytic Reduction of CO2 on Planetary Surfaces
Original language description
The photocatalytic reduction of CO2 to CH4 is a chemical process that to some extent occurs on the surface of rocky planets. The effect of an acidic proton on the rate of the photocatalytic reduction of CO2 on mineral surfaces was explored through the addition of HCl to our reaction system. HCl serves a dual role: it is a Hdonor (reactant) and creates a band gap in the case of siderite and kaolinite (modifies the chemical environment of the reaction). Of the tested minerals, Al2O3, ilmenite (FeTiO3), and one sample of soil containing fossilized remains of diatoms from the Soos Nature Reserve (Czech Republic) have shown significant activity in the methanogenesis process. Kaolinite, natural rutile, MgO, basalt, acidic and ferrous synthetic clays, the Nakhla meteorite, and two diatomaceous earth samples from the Soos Nature Reserve showed weak photocatalytic properties, the reaction was slower than that on, e.g., Al2O3. The newly recognized photocatalytic activity of some of these natural minerals and the effect of the acidic proton should be included in the atmospheric models of both our planet and exoplanets alike, as it may play a role in the estimation of methane production from CO2 in the presence of minerals on the planetary surface upon UV radiation.
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
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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