Catalytic oxidation of formaldehyde by MnCo3MOx catalyst: Effect of rare earth elements and temperature

The Catalytic Oxidation of Formaldehyde by FeOx-MnO2-CeO2 Catalyst: Effect of Iron Modification

“…The N 2 adsorption/desorption isotherms and pore size distributions of the Fe-Mn-Ce ternary mixed oxides are presented in Figure 1A, B and C, while the specific surface area (S BET ), pore diameter and pore volume are summarized in Table 1. All the catalysts exhibited the type IV isotherm with H3 hysteresis loops in the relative pressure (P/P 0 ) range of 0.6-1.0; the pore structure of the sample caused agglomeration in the capillary, indicating the existence of mesoporous structures [17,18]. It was noted that the FeO x -MnO 2 -CeO 2 -2:5:5(FMC-2:5:5) catalyst significantly increased the amount of adsorbed N 2 , which indicates that the catalyst had large specific surface area and pore volume.…”

Efficient Degradation of Toluene over CeaMnβOX‐X Synthesized by One‐Step Strategy

“…Studies have shown that the catalytic activity of composite metal oxides with an amorphous phase is higher than that of catalysts with a highly crystalline phase [18] . The interaction between different metals in solid solution catalysts is stronger, and the mutual integration between lattices is conducive to the generation of more structural defects [19,20] …”

“…[18] The interaction between different metals in solid solution catalysts is stronger, and the mutual integration between lattices is conducive to the generation of more structural defects. [19,20] The synthesis methods of composite metal oxides are diverse. The hydrothermal method, [21] citric acid combustion method, [22] template method, [23] sol-gel method, [15,24,25] and precipitation method [26,27] are representative methods.…”