T. Vikram Sagar (Avtor), Praveen Kumar (Avtor), Miroslava Filip Edelmannová (Avtor), Rudolf Ricka (Avtor), Martin Reli (Avtor), Kamila Kočí (Avtor), Peter Nadrah (Avtor), Saim Emin (Avtor), Andrijana Sever Škapin (Avtor), Urška Lavrenčič Štangar (Avtor)

Povzetek

Photocatalytic CO$_2$ reduction in the liquid phase at neutral pH conditions has been studied employing high surface area Mn-modified cubic CeO$_2$ and amorphous ZrO$_2$ catalysts. Results of the photocatalytic reduction of CO$_2$ to methane are promising on Mn-modified ZrO$_2$ and comparable with the noble metal-based photocatalysts. The surface area of both supports CeO$_2$ and ZrO$_2$ increased with Mn addition. Two broad diffraction peaks in X-ray diffractograms indicate that the ZrO$_2$ support is in the amorphous phase and Mn addition showed no considerable change. High intense diffraction peaks for CeO$_2$ support illustrated the cubic fluorite phase and Mn addition to CeO$_2$ support decreased the crystallite size due to the incorporation of Mn ions into the CeO$_2$ lattice. XPS study revealed the stabilization of Mn in a lower oxidation state i.e., Mn$^{2+}$ and Mn$^{3+}$, with ZrO$_2$ support than with CeO$_2$ support. The superior specific capacitance of the Mn-modified ZrO$_2$ catalyst indicates the enhanced synergy of active Mn species and support. Among the studied catalysts, Mn-modified ZrO$_2$ photocatalyst exhibited the highest activity and selectivity for photoreduction of CO$_2$ to methane and CO.

Ključne besede

redukcija ogljikovega dioksida;cerijev(IV) oksid;cirkonijev dioksid;fotokataliza;z manganom modificiran fotokatalizator;carbon dioxide reduction;cerium(IV) oxide;zirconium dioxide;photocatalysis;Mn-modified photocatalyst;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FKKT - Fakulteta za kemijo in kemijsko tehnologijo
UDK: 544.526.5
COBISS: 183532803 Povezava se bo odprla v novem oknu
ISSN: 2213-3437
Št. ogledov: 331
Št. prenosov: 46
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: redukcija ogljikovega dioksida;cerijev(IV) oksid;cirkonijev dioksid;fotokataliza;z manganom modificiran fotokatalizator;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-10
Letnik: ǂVol. ǂ12
Zvezek: ǂiss. ǂ2, [article no.] 112072
Čas izdaje: Apr. 2024
DOI: 10.1016/j.jece.2024.112072
ID: 23451494