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Title:Light-assisted catalysis and the dynamic nature of surface species in the reverse water gas shift reaction over Cu/γ−Al2O3
Authors:ID Lorber, Kristijan (Author)
ID Arčon, Iztok (Author)
ID Huš, Matej (Author)
ID Zavašnik, Janez (Author)
ID Sancho-Parramon, Jordi (Author)
ID Prašnikar, Anže (Author)
ID Likozar, Blaž (Author)
ID Novak Tušar, Nataša (Author)
ID Djinović, Petar (Author)
Files:URL URL - Source URL, visit https://pubs.acs.org/doi/10.1021/acsami.4c15849
 
.pdf PDF - Presentation file, download (1,87 MB)
MD5: 8566E2FB690A43658AD1E2B87FA3FC19
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo KI - National Institute of Chemistry
Abstract:The reverse water gas shift (RWGS) reaction converts CO2 and H2 into CO and water. We investigated Cu/γ-Al2O3 catalysts in both thermally driven and light-assisted RWGS reactions using visible light. When driven by combined visible light and thermal energy, the CO2 conversion rates were lower than in the dark. Light-assisted reactions showed an increase in the apparent activation energy from 68 to 87 kJ/mol, indicating that light disrupts the energetically favorable pathway active in the dark. A linear correlation between irradiance and decreasing reaction rate suggests a photon-driven phenomenon. In situ diffuse reflectance infrared Fourier transform spectroscopy and TD-DFT analyses revealed that catalyst illumination causes significant, partly irreversible surface dehydroxylation, highlighting the importance of OH groups in the most favorable RWGS pathway. This study offers a novel approach to manipulate surface species and control activity in the RWGS reaction.
Publication status:Published
Publication version:Version of Record
Publication date:11.12.2024
Publisher:American Chemical Society
Year of publishing:2024
Number of pages:str. 67788–67790
Numbering:Vol. 16, iss. 49
Source:ACS applied materials & interfaces
PID:20.500.12556/DiRROS-21079 New window
UDC:544.3/.4
ISSN on article:1944-8252
DOI:10.1021/acsami.4c15849 New window
COBISS.SI-ID:218386947 New window
Copyright:© 2024 The Authors. Published by American Chemical Society
Note:Nasl. z nasl. zaslona; Soavtorji iz Slovenije: Iztok Arčon, Matej Huš, Janez Zavašnik, Anže Prašnikar, Blaž Likozar, Nataša Novak Tušar, Petar Djinović; Opis vira z dne 10. 12. 2024;
Publication date in DiRROS:19.12.2024
Views:274
Downloads:161
Metadata:XML DC-XML DC-RDF
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LORBER, Kristijan, ARČON, Iztok, HUŠ, Matej, ZAVAŠNIK, Janez, SANCHO-PARRAMON, Jordi, PRAŠNIKAR, Anže, LIKOZAR, Blaž, NOVAK TUŠAR, Nataša and DJINOVIĆ, Petar, 2024, Light-assisted catalysis and the dynamic nature of surface species in the reverse water gas shift reaction over Cu/γ−Al2O3. ACS applied materials & interfaces [online]. 2024. Vol. 16, no. 49. [Accessed 21 April 2025]. DOI 10.1021/acsami.4c15849. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=21079
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Record is a part of a journal

Title:ACS applied materials & interfaces
Shortened title:ACS appl. mater. interfaces
Publisher:American Chemical Society
ISSN:1944-8252
COBISS.SI-ID:516049433 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0418
Name:Kemija katalizatorjev za čisti zrak
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:N2-0265
Name:Fotokatalitska redukcija CO2 z vidno svetlobo v C1-C2 produkte
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0112
Name:Raziskave atomov, molekul in struktur s fotoni in delci
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J7-4636
Name:Temeljno razumevanje reakcije tvorbe vodika za novo generacijo elektrokatalizatorjev na osnovi niklja v alkalni in kloralkalni elektrolizi
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J7-4638
Name:Načrtovanje selektivnih katalitskih postopkov pretvorbe CO2 v etanol – UliSess
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0152
Name:Kemijsko reakcijsko inženirstvo
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J1-3028
Name:Večnivojsko modeliranje fotokatalitske CO2 redukcije z računalniško intenzivnimi simulacijami (multiPHOCOS)
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:I0-0039
Name:Gibanje znanost mladini (IP GZM)
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J2-4440
Name:Načrtovanje in razvoj DT-procesiranih Fe-Al zlitin s samotvornimi preprekami za prepustnost vodika za najzahtevnejša okolja
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0421
Name:Trajnostne tehnologije in krožno gospodarstvo

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:kataliza, vidna svetloba, reakcije, spektroskopija, baker


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