In this paper, Ce-doped La1-xCexMnO3 perovskite catalysts are prepared by the sol–gel method, and promotion effect of Ce doping on LaMnO3 for CO oxidation is investigated. The characterized X-ray diffractograms, Raman, N2 physisorption isotherms, temperature-programed reduction with H2, transmission electron microscopy, photoelectron spectroscopy. results show that greatly improves catalytic ac...

LaMnO3 and 1% Pd-, Ag-, or Y-doped perovskite type nanomaterials were prepared by the sol-gel method, followed heat treatment at a low temperature (600 °C for 6 h). The investigation through X-ray diffraction FT-IR spectroscopy indicated that all samples well crystallized, without secondary phases, transition metal doping changed crystal structure from R-3c space group undoped to Pm-3m doped co...