Table 1.

Gold content and surface area of all supports and catalyst.

Sample Content	Au wt %/M wt %	SBET, cm/m2
		Support	Catalyst
Au/La/TiO2	3.6/5	45	45
Au/Ce/TiO2	3.5/5	43	47
Au/Mg/TiO2	4.0/1	43	44
Au/Fe/TiO2	4.2/2	46	44
Au/TiO2	4.5/0	56	46
Au/La/SiO2-s	2.3/7	325	110
Au/La/SiO2-i	2.4/7	242	145
Au/FexOy/SiO2-s	2.8/3	422	334
Au/FexOy/SiO2-i	2.5/3	459	195
Au/CeO2/SiO2-s	2.7/7	271	271
Au/SiO2	2.5/0	345	228