MnO –CeO2–Al2O3 mixed oxides for soot oxidation: Activity and thermal stability

Preparation, Characterization and Optimization of High Surface Area Ce-La-Cu Ternary Oxide Nanoparticles

“…Figure 6(a) shows nitrogen adsorption isotherms for the optimum ternary oxide nanoparticles and also cerium oxide, obtained by plotting the volume of nitrogen adsorbed against relative pressure (P/P 0 ). For optimum nanoparticles, N 2 adsorption was greatly increased, in comparison (1) and pure cerium oxide (2) with pure cerium oxide. This is because of a great increase in specific surface area of the optimum sample, compared to pure cerium oxide.…”

“…• C calcination temperature, and calcination time of 3 hours (A (1) and cerium oxide (2) at level 1, B at level 3, C at level 1, and D at level 1). Ce-La-Cu ternary oxide nanoparticles, at the optimum condition, were prepared and 99.4 m 2 /g was obtained for its surface area, which is higher than all other surface areas obtained from the 16 samples.…”

“…Due to versatile properties of cerium oxide for various applications, the use of binary and ternary combinations of metal oxides (including ceria) has increased in recent years [1,2].…”

“…Ce-Mn-Al for soot oxidation [2], Ce-Cu-Zr for CO removal from hydrogen-rich gas [3] and catalyst deep oxidation of benzene [4], Ce-Zr-Nd for gasoline engine exhaust reduction [5], Ce-Cu-V for carbon black oxidation [6], Ce-Co-Zr for methane dry reforming [7], Ce-Au-La for water gas shift reactions [8], Ce-NiLa for partial oxidation of methane [9], Ce-Ca-Mn for CO2 oxidative coupling of methane [10], Ce-Zr-Al as an oxidation agent [11], and Ce-Ni-Zr for hydrogen storage [12] have been proposed. Given the importance of ternary oxide combinations, cerium-lanthanum-copper ternary oxide was studied in this research.…”

Synergistic catalysis effect of Mn-promoted BaAl2O4 catalysts on catalytic performance for soot combustion

“…Li et al [10] reported that MnO 2 with different structures and morphologies showed the outstanding catalytic activity for ethanol oxidation due to the low-temperature reducibility, abundant surface adsorbed oxygen species and Mn 4+ ions. Wu et al [11] reported that the introduction of Mn to CeO 2 greatly facilitates the oxygen storage capacity of ceria, increases the specific surface area, improves the low-temperature redox property, and then enhances the catalytic performance for soot combustion.…”