TABLE 2.

Reducibility of the CeO₂X and Au/CeO₂ catalysts as inferred from the results of H₂-temperature-programmed reduction experiments.

Sample	Reduction Temperature (°C)			H2 Uptake (mmol/g)
	T1	T2	T3	T1	T2	T3
CeO2120	-	559	839	0	0.50	1.09
CeO2140	-	551	830	0	0.53	1.12
CeO2160	-	551	842	0	0.56	1.27
CeO2180	-	561	836	0	0.57	1.03
Au/CeO2120	89	527	819	0.16	0.06	0.99
Au/CeO2140	146	503	828	0.46	0.11	1.11
Au/CeO2160	121	507	825	0.35	0.08	1.06
Au/CeO2180	145	506	831	0.46	0.04	0.84