A potential descriptor for the CO2 hydrogenation to CH4 over Al2O3 supported Ni and Ni-based alloy catalysts

Promotion effect of additive Fe on Al2O3 supported Ni catalyst for CO2 methanation

“…Nevertheless, the first peak of 12Ni12Fe was similar with 12Ni while the second peak was split into two peaks. This indicates that adding a suitable amount of Fe can weaken the interaction between Ni and support as presented previously and reducible iron species can assist in lowering the reduction temperature of the Ni‐Fe/Al 2 O 3 samples . However, adding too much Fe destroys this role and also introduces Fe oxide species aggregated on 12Ni12Fe.…”

Ni/LnOx Catalysts (Ln=La, Ce or Pr) for CO2 Methanation

“…CO 2 methanation nickel catalysts have been studied using different supports, and the most studied are alumina,,,,, pure ceria, ceria‐zirconia mixed oxides,, silica, titania and zirconia among others . The role of the support in the catalytic activity has been related with the dispersion of nickel, with the influence in the reducibility of the nickel oxide species due to the metal‐support interaction and with the CO 2 chemisorption capacity …”

“…Despite the reaction is known since more than 100 years ago, scientists are paying more attention to this process in the last decade [6][7][8][9][10][11][12][13][14][15] because it has been identified as a potential route to valorize CO 2 emissions, yielding a valuable fuel.…”

“…[36][37][38][39][40][41][42] Noble metal catalysts are able to operate at lower temperature than nickel catalysts, but the prize of noble metals is much higher and nickel catalysts are a promising option for mild temperature. CO 2 methanation nickel catalysts have been studied using different supports, and the most studied are alumina, [8,10,15,37,[39][40][41] pure ceria, [10] ceria-zirconia mixed oxides, [11,39] silica, [12] titania [10] and zirconia [38] among others. [43][44][45] The role of the support in the catalytic activity has been related with the dispersion of nickel, with the influence in the reducibility of the nickel oxide species due to the metal-support interaction and with the CO 2 chemisorption capacity.…”

Strain engineering the D-band center for Janus MoSSe edge: Nitrogen fixation

“…It is well-known that the D-band center model has played a crucial role in the adsorption ability and reaction activation energy [39][40][41] . It is one of the indicators to evaluate the catalytic effect [42][43][44][45][46][47] . Specifically, the effect of strain on the reactivity of the surface of catalyst can induce a shift in the metal D-band center.…”