Partial oxidation of methane over supported ruthenium catalysts

Zr- and Li-Modified Ru/Sio2 Catalysts for Fischer–Tropsch Synthesis

“…The results indicate that the well-defined peak at T = 468 K is attributable to the first reduction of RuO 2 (x = 2) [15], while the second peak at T = 422 K is due to the reduction of the well-dispersed RuO x species [16]. The small broad peak between 600 K and 800 K is attributed to the reduction of SiO 2 supports [17]. The intensity of the peak at 468 K decreased and that of the peak at 422 K increased with an increase in the Zr content; however, the peak obtained for 5 wt% Zr remained unaffected.…”

Bimetallic Ru-Re/γ-Al2O3 catalysts for the catalytic combustion of propane: Effect of the Re addition

“…4A, pattern a). The low temperature maxima are assigned to the reduction of RuO 2 oxide in the well-dispersed and crystalline form, respectively [32], while the high temperature maximum results from reduction of the ruthenium species in the strong interaction with alumina. The reduction of Re oxide species in Re catalysts occurred at higher temperature (Fig.…”

Oxidation of nitric oxide to nitrogen dioxide over Ru catalysts

“…Particularly, the reduction peaks at c.a. 180 and 230 8C are attributed to the reduction of crystallized RuO 2 to Ru 0 , in well-dispersed form and bulk form, respectively [26,27]. The reduction peak at 125 8C in the low temperature range is attributed to the reduction of poorly crystallized or so-called amorphous bulk RuO x .…”