Low temperature CO oxidation over Pd catalysts supported on highly ordered mesoporous metal oxides

Thermal H2-treatment effects on CO/CO2 conversion over Pd-doped CeO2 comparison with Au and Ag-doped CeO2

“…The intensity usually depends on the surface area (or crystal size), and decreases as the surface area decreases. 1 Upon doping with 1 mol% Pd, the lower temperature broad peak separated into two distinct peaks centered at 188 and 357°C, which is inconsistent with the literature [19,32]. The peak at 188°C was associated with the Pd-doping level, and attributed to the reduction of weakly interacted Pd species.…”

Stabilized ordered-mesoporous Co3O4 structures using Al pillar for the superior CO hydrogenation activity to hydrocarbons

“…The synthetic procedure of ordered-mesoporous Co 3 O 4 using mesoporous KIT-6 as a hard templating material followed the previous report [15]. Briefly, the mesoporous KIT-6 was pretreated by heating at 100 • C for 1 h, and cobalt nitrate hexahydrate (Co(NO 3 ) 2 ·6H 2 O, Samchun Chem., 97.0%) precursor of 9.5 g was separately dissolved in 10 ml distilled water.…”

“…FTS reaction is known to be one of the chemical processes that convert syngas into clean liquid fuels to reduce the pollution emissions from stationary or mobile sources. Therefore, its use in syngas in the applications to various catalytic reactions such as oxidation reactions [15][16][17][18][19][20] or battery technologies [21,22] due to their intrinsic characteristics such as regular pore structures and active metal frameworks. However, ordered-mesoporous Co 3 O 4 has not been sufficiently investigated till now as far as we know due to its unstable structure under hydrogen-rich condition [23], especially in CO hydrogenation reactions such as the FTS reaction.…”

Pd supported on SnO2–MnO –CeO2 catalysts for low temperature CO oxidation

“…On the other hand, Pd supported on highly ordered mesoporous CeO 2 showed excellent LTA for CO oxidation. For example, Jin et al [12] reported that Pd supported on mesoporous CeO 2 synthesized by a KIT-6 silica hard template method showed a T 90 of 90 • C. After H 2 reduction at 150 • C for 1 h, the T 90 decreased to 50 • C. Moreover, Pd supported on mesoporous Co 3 O 4 -CeO 2 prepared by a surfactant-template method resulted in a T 90 of 75 • C without performing a H 2 pretreatment [13]. A T 90 of room temperature was also reported over Pd/CeO 2 -TiO 2 catalysts, synthesized by sol-gel precipitation and subsequent application of supercritical fluid drying [14].…”