Gold clusters supported on La(OH)3 for CO oxidation at 193Â K

A AuLa2(OH)9 coprecipitate calcined in air at 423 K shows high catalytic activity, after reduction treatment with H2 or CO at 373 K, for CO oxidation at 193 K. The catalysis composed of Au0 clusters smaller than 1.8 nm in diameters attached to the La(OH)3 support, which contains isolated oxidic Au species.