Study on coke formation over Ni/γ-Al2O3, Co-Ni/γ-Al2O3, and Mg-Co-Ni/γ-Al2O3 catalysts for carbon dioxide reforming of methane

Tuning the composition of metastable Co Ni Mg100−−(OH)(OCH3) nanoplates for optimizing robust methane dry reforming catalyst

“…Fan et al [56] explored the catalytic performance of Co-Ni supported on MgO-ZrO 2 and achieved improved stability in MDR and regenerability of the spent catalysts. Similar results for Co-Ni dispersed on c-Al 2 O 3 were discovered by Son et al [64]. Djinović et al [5] have used CeO 2 -ZrO 2 as a support for Co-Ni alloy catalysts and found that loading and particle size are crucial for coking resistance.…”

Improving Plasma Regeneration Conditions of Pt–Sn/Al2O3 in Naphtha Catalytic Reforming Process Using Atmospheric DBD Plasma System

“…The spent (coked) catalysts had a peak at about 492°C in DTA spectrum and also there was a sharp slope in TG curve at the same temperature range that was the result of the coke oxidation [31]. Between 400 and 500°C, weight loss can be assigned to the removal of easily oxidizable carbonaceous species like amorphous carbon [32][33][34]. Furthermore, the comparison between DTA profiles of the fresh and coked catalysts indicated that the fresh catalyst did not contain any coke.…”

Syngas production from CO2 reforming with methane over core-shell Ni@SiO2 catalysts

“…However, on one hand, high temperature promotes catalyst sintering by Ostwald Ripen process, which makes aggregation of nanoparticles and reduction of active sites [8]. On the other hand, high temperature favors carbon formation by methane decomposition, which encapsulates the surface of catalyst and blocks the access of reactants [9,10].…”