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Table 2 Ratios of Ce, Pd, and O in different states for different catalysts, as obtained from the XPS results

From: Rod-Like Nanoporous CeO2 Modified by PdO Nanoparticles for CO Oxidation and Methane Combustion with High Catalytic Activity and Water Resistance

Catalysts Ce3+/(Ce3+ + Ce4+) (%) Pd2+/(Pd0 + Pd2+) (%) Osur/(Olat + Osur + OH2O) (%)
Calcined dealloyed Al92Ce8 14.27 / /
Calcined dealloyed Al91.3Ce8Pd0.7 23.33 91.25 29.3
Dealloyed Al91.3Ce8Pd0.7 21.15 6.45 16.2