Catalysis Letters, Vol.89, No.1-2, 109-114, 2003
Highly active Au/TiO2 catalysts for low-temperature CO oxidation: preparation, conditioning and stability
Using a modified deposition-precipitation procedure and a new reductive conditioning method, Au/TiO2 catalysts with small metallic Au particles(<2 nm) and a very high activity for low-temperature CO oxidation were prepared. The particles are stable during reaction; a decreasing activity is caused by the accumulation of by-products on the catalyst.
Keywords:supported catalyst;catalyst activation;catalyst deactivation;CO oxidation;selective CO oxidation;particle size;Au/TiO2;TEM;DRIFTS;XPS;XRD;kinetic measurements