Methanol and Acetic Acid from CH4 and CO2: The Role of Copper Speciation in Zeolite Cu-FER

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F25%3A00619195" target="_blank" >RIV/61388955:_____/25:00619195 - isvavai.cz</a>

Výsledek na webu

<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202500174" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202500174</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cctc.202500174" target="_blank" >10.1002/cctc.202500174</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Methanol and Acetic Acid from CH4 and CO2: The Role of Copper Speciation in Zeolite Cu-FER

Popis výsledku v původním jazyce

This study highlights the efficiency of Cu-FER catalysts with varying copper loadings in transforming carbon dioxide (CO2) and methane (CH4) into methanol or acetic acid. The XAS, UV-vis, and FTIR analyses confirmed that Cu-FER catalysts with low copper loading contain a high fraction of isolated Cu2+ cations, while those with high copper loading exhibit a significant presence of Cu oxo-species. In-situ studies (FTIR and mass spectrometry) revealed that bare Cu(II) cations, in synergy with Broensted acid sites, facilitate the conversion of CO2 and CH4 into acetic acid via coupled oxidation and carbonylation reactions. In contrast, the absence of Broensted acid sites and the dominance of Cu oxo-species in high-loaded Cu-FER favor the formation of methanol. Importantly, the findings confirm that the transformation of CO2 and CH4 into oxygen-containing products occurs under in-situ conditions, with products detected at temperatures below 300 degrees C. These results provide valuable insights for designing zeolite-based catalysts optimized for the selective production of specific oxygenated compounds from CO2 and CH4, offering a promising strategy for the utilization of these greenhouse gases.

Název v anglickém jazyce

Methanol and Acetic Acid from CH4 and CO2: The Role of Copper Speciation in Zeolite Cu-FER

Popis výsledku anglicky

This study highlights the efficiency of Cu-FER catalysts with varying copper loadings in transforming carbon dioxide (CO2) and methane (CH4) into methanol or acetic acid. The XAS, UV-vis, and FTIR analyses confirmed that Cu-FER catalysts with low copper loading contain a high fraction of isolated Cu2+ cations, while those with high copper loading exhibit a significant presence of Cu oxo-species. In-situ studies (FTIR and mass spectrometry) revealed that bare Cu(II) cations, in synergy with Broensted acid sites, facilitate the conversion of CO2 and CH4 into acetic acid via coupled oxidation and carbonylation reactions. In contrast, the absence of Broensted acid sites and the dominance of Cu oxo-species in high-loaded Cu-FER favor the formation of methanol. Importantly, the findings confirm that the transformation of CO2 and CH4 into oxygen-containing products occurs under in-situ conditions, with products detected at temperatures below 300 degrees C. These results provide valuable insights for designing zeolite-based catalysts optimized for the selective production of specific oxygenated compounds from CO2 and CH4, offering a promising strategy for the utilization of these greenhouse gases.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GF24-14387L" target="_blank" >GF24-14387L: Zelené CO2 - průzkum cest k udržitelné výrobě platformových chemikálií</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

ChemCatChem

ISSN

1867-3880

e-ISSN

1867-3899

Svazek periodika

17

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

e202500174

Kód UT WoS článku

001462531400001

EID výsledku v databázi Scopus

2-s2.0-105002260391