Table 1 Textural properties of the catalysts employed BET surface area Pore Volume Pore diameter Catalyst (m2/g) (ml/g) (nm) Pd/Al2O3 99.1 0.24 10 Pt/Al2O3 97.7 0.24 10 Table 2 XPS analysis data for fresh and used catalysts Binding Energy (eV) of Surface Atomic Ratio Catalyst and Pt4d5/2 Levels (Pt or Pd)/Al Pd/Al2O3 fresh 336.0 0.0083 337.9 (34) used 0.0120 336.0 (66) fresh 314.0 0.0041 316.8 (42) Pt/Al2O3 used at 333 K 0.0042 314.2 (58) 316.9 (53) used at 353 K 0.0042 314.2 (47) used at 353 K 316.9 (42) 0.0040 and pH = 10 314.2 (58) Figure 1 Hydrogen peroxide (a) and by-products (b) derived from PO concentration profiles during the H2O2 decomposition at 333 K using Pd and Pt catalysts and alumina support
Table 1 Textural properties of the catalysts employed Catalyst BET surface area (m2/g) Pore Volume (ml/g) Pore diameter (nm) Pd/Al2O3 99.1 0.24 10 Pt/Al2O3 97.7 0.24 10 Table 2 XPS analysis data for fresh and used catalysts Catalyst Binding Energy (eV) of and Pt4d5/2 Levels Surface Atomic Ratio (Pt or Pd)/Al Pd/Al2O3 fresh 336.0 0.0083 used 337.9 (34) 336.0 (66) 0.0120 fresh 314.0 0.0041 Pt/Al2O3 used at 333 K 316.8 (42) 314.2 (58) 0.0042 used at 353 K 316.9 (53) 314.2 (47) 0.0042 used at 353 K and pH = 10 316.9 (42) 314.2 (58) 0.0040 Figure 1 Hydrogen peroxide (a) and by-products (b) derived from PO concentration profiles during the H2O2 decomposition at 333 K using Pd and Pt catalysts and alumina support
AJE_Edited_catalysis%20today%20Fueng%20final.docx