Characterization of the metallic phase in nanocrystalline ZnAl2O4-supported Pt catalysts

▶ Studied ZnAl2O4 supports have high capacity to achieve high dispersion of Pt phase. ▶ H2 and O2 chemisorption is useful to characterization of the low-loaded Pt/ZnAl2O4. ▶ The H2-O2 titration technique is limited to high-loaded Pt/ZnAl2O4 catalysts.