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Iskalni niz: "avtor" (Petar Djinović) .

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Light-assisted catalysis and the dynamic nature of surface species in the reverse water gas shift reaction over ▫$Cu/\gamma-Al_2O_3$▫
Kristijan Lorber, Iztok Arčon, Matej Huš, Janez Zavašnik, Jordi Sancho-Parramon, Anže Prašnikar, Blaž Likozar, Nataša Novak Tušar, Petar Djinović, 2024, izvirni znanstveni članek

Povzetek: 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.
Objavljeno v DiRROS: 19.12.2024; Ogledov: 310; Prenosov: 178
.pdf Celotno besedilo (1,87 MB)
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Accelerating photo-thermal CO [sub] 2 reduction to CO, CH [sub] 4 or methanol over metal/oxide semiconductor catalysts
Kristijan Lorber, Petar Djinović, 2022, izvirni znanstveni članek

Objavljeno v DiRROS: 19.04.2022; Ogledov: 1561; Prenosov: 826
.pdf Celotno besedilo (1,98 MB)
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Propylene epoxidation using molecular oxygen over copper- and silver-based catalysts : a review
Janvit Teržan, Matej Huš, Blaž Likozar, Petar Djinović, 2020, pregledni znanstveni članek

Objavljeno v DiRROS: 26.11.2020; Ogledov: 2342; Prenosov: 1389
.pdf Celotno besedilo (5,24 MB)
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