Počet záznamů: 1

Acidic Hydrogen Enhanced Photocatalytic Reduction of CO2 on Planetary Surfaces

SYSNO ASEP	0536891
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Acidic Hydrogen Enhanced Photocatalytic Reduction of CO2 on Planetary Surfaces
Tvůrce(i)	Knížek, Antonín (UFCH-W)_{ORCID, RID, SAI} Kubelík, Petr (UFCH-W)_{RID, ORCID} Bouša, Milan (UFCH-W)_{RID, ORCID} Ferus, Martin (UFCH-W)_{ORCID, RID} Civiš, Svatopluk (UFCH-W)_{RID, ORCID, SAI}
Zdroj.dok.	ACS Earth and Space Chemistry. - : American Chemical Society - ISSN 2472-3452 Roč. 4, č. 7 (2020), s. 1001-1009
Poč.str.	9 s.
Jazyk dok.	eng - angličtina
Země vyd.	US - Spojené státy americké
Klíč. slova	diffuse-reflectance measurements ; oxygen-isotope exchange ; carbon-dioxide ; band-gap ; tio2 ; methane ; mechanisms ; conversion ; complexes ; photocatalytic reduction of CO2 ; IR spectroscopy ; photocatalysis ; natural minerals ; reflectance ; band gap ; rate constant ; acidic conditions
Vědní obor RIV	CF - Fyzikální chemie a teoretická chemie
Obor OECD	Physical chemistry
CEP	GA19-03314S GA ČR - Grantová agentura ČR
	EF16_019/0000778 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
Způsob publikování	Omezený přístup
Institucionální podpora	UFCH-W - RVO:61388955
UT WOS	000551545600006
EID SCOPUS	85088695421
DOI	10.1021/acsearthspacechem.0c00039
Anotace	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.
Pracoviště	Ústav fyzikální chemie J.Heyrovského
Kontakt	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Rok sběru	2021
Elektronická adresa	http://hdl.handle.net/11104/0314646

Počet záznamů: 1