A highly active and stable Ru catalyst for syngas production via glycerol dry reforming: Unraveling the interplay between support material and the active sites

A highly active and stable Ru catalyst for syngas production via glycerol dry reforming: Unraveling the interplay between support material and the active sites

Glycerol dry reforming (GDR) was studied on Ru/La2O3, Ru/ZrO2, and Ru/La2O3–ZrO2 catalysts. Impacts of the support on morphological, electronic and surface chemical properties of the catalysts were comprehensively characterized by TEM, in–situ DRIFTS, XPS, ATR–IR and XRD. Initial (5 h) CO2 conversio...

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Veröffentlicht in:Applied catalysis. A, General General, 2022-04, Vol.636, p.118577, Article 118577
Hauptverfasser: Ozden, Mert, Say, Zafer, Kocak, Yusuf, Ercan, Kerem Emre, Jalal, Ahsan, Ozensoy, Emrah, Avci, Ahmet K.
Format: Artikel
Sprache:eng
Schlagworte:
Carbon dioxide
Carbonation
Catalysts
Chemical properties
Coking
Conversion
Deactivation
Dry reforming
Fourier transforms
Glycerol
Lanthanum oxides
Reforming
Ruthenium
Stability tests
Synthesis gas
Tetragonal zirconia
Zirconium dioxide
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Zusammenfassung:Glycerol dry reforming (GDR) was studied on Ru/La2O3, Ru/ZrO2, and Ru/La2O3–ZrO2 catalysts. Impacts of the support on morphological, electronic and surface chemical properties of the catalysts were comprehensively characterized by TEM, in–situ DRIFTS, XPS, ATR–IR and XRD. Initial (5 h) CO2 conversion at 750 °C and CO2–to–glycerol ratio of 1–4 was ordered as Ru/La2O3  30% via sintering, support deformation and migration onto Ru.•RuLa lost 27% of its initial activity primarily via severe coking.•RuLZ performed comparable to the significantly more expensive Rh–based counterpart.
ISSN:0926-860X
1873-3875
DOI:10.1016/j.apcata.2022.118577