Phyllosilicate evolved hierarchical Ni- and Cu–Ni/SiO2 nanocomposites for methane dry reforming catalysis

Cr‐Doped La‐Ni‐O Catalysts Derived from Perovskite Precursors for CH4‐CO2 Reforming under Microwave Irradiation

“…On the three samples, the first hydrogen consumption process is assigned to the reduction of Ni 3+ to Ni 2+ and the second one belongs to that of Ni 2+ to Ni 0 in perovskite and the segregated NiO phases because Cr 3+ and La 3+ are both difficult to be reduced under these conditions and the amount of Cr 6+ can be neglected 18, 39. The largest TPR peak for the reduction of Ni 3+ to Ni 2+ and the lowest reduction temperature of Ni 2+ to Ni 0 of LCN‐4 indicates the most available oxygen in the low‐temperature range for a rapid migration of the lattice oxygen from the bulk to the surface among the three samples.…”

“…Up to now, different approaches are practiced on suppressing, reducing, and even removing the deposited carbons from the catalyst surface. Promising strategies to address these challenges include (i) doping a small amount of promoters into Ni catalysts 6, 16–18, (ii) generating nano‐sized Ni particles by strengthening the interaction between Ni particles and the carrier 1, 2, 7, and (iii) improving the particles' dispersion on the carrier 6, 7, 19.…”

Promotional effect of lanthana on the high-temperature thermal stability of Pt/TiO2sulfur-resistant diesel oxidation catalysts

“…Catalyst supports with superior porous textures are advantageous for the dispersion of the active phase and hence improving the catalytic activity. [58][59][60] The Pt particle sizes of the fresh and simulative vehicle-aged catalysts were observed by TEM. As presented in Fig.…”

Dry Reforming of Methane over a Ruthenium/Carbon Nanotube Catalyst

“…Methane dry reforming (DR) (overall: CH 4 + CO 2 → 2CO + 2H 2 , ∆H 298K = 2.473 × 10 5 J) would remove two greenhouse gases while generating useful synthesis gas (H 2 , CO) as a chemical feedstock [6][7][8], especially for important chemicals such as ammonia and methanol, and for Fischer-Tropsch liquids [9,10]. The energy needed for the reforming can be supplied by burning some of the CH 4 .…”