Unique catalytic activity of platinum eluted into perovskite in the solid phase

Date M; Nomura K; Kageyama H; Imai H; Tsubota S

Catalysis Letters, Vol.117, No.3-4, 107-111, 2007

DOI10.1007/s10562-007-9159-9 Export Citation

Unique catalytic activity of platinum eluted into perovskite in the solid phase

Date M, Nomura K, Kageyama H, Imai H, Tsubota S

It has been found that Pt eluted into the (La0.7Sr0.2Ba0.1)ScO3-delta perovskite oxide exhibited higher catalytic activity for CO oxidation than for H-2 oxidation under separate reaction conditions, a behaviour which differs from that of conventional Pt catalysts. The unique activity appeared when ionic Pt in the perovskite lattice was partly reduced, forming Pt nanoparticles on the surface.

Keywords:platinum;oxidation catalyst;carbon monoxide;hydrogen;perovskite;oxide support