Characterization of catalysts derived from oxidation of ruthenium-thorium intermetallics

Partial oxidation of methane over bimetallic copper- and nickel-actinide oxides (Th, U)

“…It has been shown elsewhere [51,[62][63][64] that, for a binary alloy, the constituent element with the lower heat of sublimation, larger atomic radius, and higher reactivity with the ambient gas (i.e. higher heat of formation of metal oxide) will segregate to the surface ( H f ThO 2 = 1226.4, UO 3 = −1223.8; NiO = −239.7; CuO = −157.3 kJ/mol).…”

High performance and durable nanostructured TiN supported Pt50–Ru50 anode catalyst for direct methanol fuel cell (DMFC)

“…The Ru 3d 5/2 spectrum shown in Fig. S4 in the supporting information, is observed at 284.3 eV for JM-Pt(Ru) catalyst, corresponding to a zero oxidation state [36,37]. In the case of CSG-Pt(Ru)/TiN, the Ru 3d 5/2 peak is shifted to higher binding energy values similar to Pt in contrast to JM-Pt(Ru).…”

Thermal studies on oxidation–reduction of LnCu2 intermetallic compounds and their catalytic behavior for 2-propanol decomposition

“…The surface structure of the oxidized intermetallic compounds has been better described as M particles embedded in a lanthanide oxiderich overlayer [12]. Similar structure was proposed for catalysts derived from oxidation of Ru x Th y intermetallics [13].…”