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Pregled bibliografske jedinice broj: 1155409

On the mechanism of visible-light accelerated methane dry reforming reaction over Ni/CeO2−x catalysts


Lorber, Kristijan; Zavašnik, Janez; Sancho Parramon, Jordi; Bubaš, Matej; Mazaj, Matjaš; Djinović, Petar
On the mechanism of visible-light accelerated methane dry reforming reaction over Ni/CeO2−x catalysts // Applied catalysis. B, Environmental, 301 (2021), 120745, 11 doi:10.1016/j.apcatb.2021.120745 (međunarodna recenzija, članak, znanstveni)


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Naslov
On the mechanism of visible-light accelerated methane dry reforming reaction over Ni/CeO2−x catalysts

Autori
Lorber, Kristijan ; Zavašnik, Janez ; Sancho Parramon, Jordi ; Bubaš, Matej ; Mazaj, Matjaš ; Djinović, Petar

Izvornik
Applied catalysis. B, Environmental (0926-3373) 301 (2021); 120745, 11

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Methane activation Ni/CeO2−x Visible light Reaction mechanism Photocatalysis

Sažetak
The methane dry reforming reaction (DRM) converts methane and CO2 into syngas, a mixture of H2 and CO. When illuminated by 790 mW cm−2 of white light, the 2Ni/CeO2−x catalyst converts CH4 and CO2 beyond thermodynamic equilibrium, while the energy efficiency reaches 33%. The DRM reaction is sustained in a purely photocatalytic mode without external heating, yielding CH4 and CO2 rates of 0.21 and 0.75 mmol (gcat • min)−1, respectively. Theoretical analysis of Ni/CeO2−x optical properties agrees with in-situ UV-Vis DRS results and reveals partly reduced Ce3+ sites crucial for extending the optical absorption of Ni/CeO2−x into the visible light range. Two photocatalytic mechanisms are postulated to occur: the hot charge-carrier driven photocatalytic mechanism and the near-field induced resonant energy transfer, depending on the energy of photons used to stimulate the catalyst. This work identifies sub-stoichiometric Ni/CeO2−x as highly efficient for boosting methane activation by visible light under mild conditions.

Izvorni jezik
Engleski



POVEZANOST RADA


Projekti:
HRZZ-IP-2019-04-5424 - Metalni kompoziti za ultra-tanke infracrvene slojeve (METACUC) (Sancho Parramon, Jordi, HRZZ - 2019-04) ( POIROT)

Profili:

Avatar Url Matej Bubaš (autor)

Avatar Url Jordi Sancho Parramon (autor)

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com www.sciencedirect.com

Citiraj ovu publikaciju:

Lorber, Kristijan; Zavašnik, Janez; Sancho Parramon, Jordi; Bubaš, Matej; Mazaj, Matjaš; Djinović, Petar
On the mechanism of visible-light accelerated methane dry reforming reaction over Ni/CeO2−x catalysts // Applied catalysis. B, Environmental, 301 (2021), 120745, 11 doi:10.1016/j.apcatb.2021.120745 (međunarodna recenzija, članak, znanstveni)
Lorber, K., Zavašnik, J., Sancho Parramon, J., Bubaš, M., Mazaj, M. & Djinović, P. (2021) On the mechanism of visible-light accelerated methane dry reforming reaction over Ni/CeO2−x catalysts. Applied catalysis. B, Environmental, 301, 120745, 11 doi:10.1016/j.apcatb.2021.120745.
@article{article, author = {Lorber, Kristijan and Zava\v{s}nik, Janez and Sancho Parramon, Jordi and Buba\v{s}, Matej and Mazaj, Matja\v{s} and Djinovi\'{c}, Petar}, year = {2021}, pages = {11}, DOI = {10.1016/j.apcatb.2021.120745}, chapter = {120745}, keywords = {Methane activation Ni/CeO2−x Visible light Reaction mechanism Photocatalysis}, journal = {Applied catalysis. B, Environmental}, doi = {10.1016/j.apcatb.2021.120745}, volume = {301}, issn = {0926-3373}, title = {On the mechanism of visible-light accelerated methane dry reforming reaction over Ni/CeO2−x catalysts}, keyword = {Methane activation Ni/CeO2−x Visible light Reaction mechanism Photocatalysis}, chapternumber = {120745} }
@article{article, author = {Lorber, Kristijan and Zava\v{s}nik, Janez and Sancho Parramon, Jordi and Buba\v{s}, Matej and Mazaj, Matja\v{s} and Djinovi\'{c}, Petar}, year = {2021}, pages = {11}, DOI = {10.1016/j.apcatb.2021.120745}, chapter = {120745}, keywords = {Methane activation Ni/CeO2−x Visible light Reaction mechanism Photocatalysis}, journal = {Applied catalysis. B, Environmental}, doi = {10.1016/j.apcatb.2021.120745}, volume = {301}, issn = {0926-3373}, title = {On the mechanism of visible-light accelerated methane dry reforming reaction over Ni/CeO2−x catalysts}, keyword = {Methane activation Ni/CeO2−x Visible light Reaction mechanism Photocatalysis}, chapternumber = {120745} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati:





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