Synergistic effect of manganese on zirconia and ceria supports for improving photoreduction of CO2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F24%3A10255306" target="_blank" >RIV/61989100:27710/24:10255306 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/24:10255306

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2213343724002021#ack0005" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2213343724002021#ack0005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jece.2024.112072" target="_blank" >10.1016/j.jece.2024.112072</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synergistic effect of manganese on zirconia and ceria supports for improving photoreduction of CO2

Popis výsledku v původním jazyce

Photocatalytic CO2 reduction in the liquid phase at neutral pH conditions has been studied employing high surface area Mn-modified cubic CeO2 and amorphous ZrO2 catalysts. Results of the photocatalytic reduction of CO2 to methane are promising on Mn-modified ZrO2 and comparable with the noble metal-based photocatalysts. The surface area of both supports CeO2 and ZrO2 increased with Mn addition. Two broad diffraction peaks in X-ray diffractograms indicate that the ZrO2 support is in the amorphous phase and Mn addition showed no considerable change. High intense diffraction peaks for CeO2 support illustrated the cubic fluorite phase and Mn addition to CeO2 support decreased the crystallite size due to the incorporation of Mn ions into the CeO2 lattice. XPS study revealed the stabilization of Mn in a lower oxidation state i.e., Mn2+ and Mn3+, with ZrO2 support than with CeO2 support. The superior specific capacitance of the Mn-modified ZrO2 catalyst indicates the enhanced synergy of active Mn species and support. Among the studied catalysts, Mn-modified ZrO2 photocatalyst exhibited the highest activity and selectivity for photoreduction of CO2 to methane and CO. (C) 2024 The Authors

Název v anglickém jazyce

Synergistic effect of manganese on zirconia and ceria supports for improving photoreduction of CO2

Popis výsledku anglicky

Photocatalytic CO2 reduction in the liquid phase at neutral pH conditions has been studied employing high surface area Mn-modified cubic CeO2 and amorphous ZrO2 catalysts. Results of the photocatalytic reduction of CO2 to methane are promising on Mn-modified ZrO2 and comparable with the noble metal-based photocatalysts. The surface area of both supports CeO2 and ZrO2 increased with Mn addition. Two broad diffraction peaks in X-ray diffractograms indicate that the ZrO2 support is in the amorphous phase and Mn addition showed no considerable change. High intense diffraction peaks for CeO2 support illustrated the cubic fluorite phase and Mn addition to CeO2 support decreased the crystallite size due to the incorporation of Mn ions into the CeO2 lattice. XPS study revealed the stabilization of Mn in a lower oxidation state i.e., Mn2+ and Mn3+, with ZrO2 support than with CeO2 support. The superior specific capacitance of the Mn-modified ZrO2 catalyst indicates the enhanced synergy of active Mn species and support. Among the studied catalysts, Mn-modified ZrO2 photocatalyst exhibited the highest activity and selectivity for photoreduction of CO2 to methane and CO. (C) 2024 The Authors

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20701 - Environmental and geological engineering, geotechnics

Projekt

<a href="/cs/project/GF21-24268K" target="_blank" >GF21-24268K: Přeměna CO2 na užitečné chemikálie katalytickými a fotokatalytickými procesy v přítomnosti vysoce aktivních materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Environmental Chemical Engineering

ISSN

2213-2929

e-ISSN

2213-3437

Svazek periodika

12

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

nestránkováno

Kód UT WoS článku

001179532800001

EID výsledku v databázi Scopus

2-s2.0-85184008755