Catalytic Behaviour of Mesoporous Cobalt-Aluminum Oxides for CO Oxidation

Table 2

XPS-derived surface compositions (atom%) of the Co–Al₂O₃ oxides.

Sample	Co/at%	Al/at%	sat1/Co 2
5Co/Al2O3 (973)	0.5	41.8	0.9
10Co/Al2O3 (973)	0.9	43.1	0.8
15Co/Al2O3 (973)	1.0	42.3	0.7

Co/Al₂O₃ () = cobalt loading (wt%) on Al₂O₃ (calcination temperature, K).
Area ratios from the Co 2p region spectra.