Physicochemical characteristics of TiO₂ and Pt/TiO₂ catalysts and their activities. Reaction temperature = 298 K, HCHO = 25 ppm, O₂ = 21%, N₂ balance, total flow = 500 ml min⁻¹, SV = 360 000 h⁻¹.

Samples	SSA of raw TiO2 (m2 g−1)	SSA of Pt/TiO2 (m2 g−1)	D (%)	Reaction rate (mmol gcat−1 min−1)	TOF × 100 (s−1)
PT-Aa	11	9	2.6	4.29 × 10−6	0.322
PT-Ar	4	23	3.2	6.59 × 10−6	0.401
PT-D	76	35	3.4	8.16 × 10−6	0.468
PT-G	340	38	6.1	6.18 × 10−5	1.975
PT-Gs	250	21	6.4	1.75 × 10−5	0.533
PT-N	144	26	6.9	7.12 × 10−5	2.025
PT-P	44	30	5.9	1.75 × 10−5	0.578
PT-S	122	55	19.1	1.08 × 10−4	1.103
PT-U	149	37	13.2	9.37 × 10−5	1.384
PT-W	65	11	3.7	6.47 × 10−6	0.341