LU Hanfeng, HUANG Haifeng, LIU Huayan, et al. Catalytic combustion performance of Au doping La0.8Sr0.2MnO3 perovskites[J]. CIESC Journal, 2008, (4): 892-897.
LU Hanfeng, HUANG Haifeng, LIU Huayan, et al. Catalytic combustion performance of Au doping La0.8Sr0.2MnO3 perovskites[J]. CIESC Journal, 2008, (4): 892-897.DOI:
Perovskite-type oxides of Au-LSM and Au/LSM with 0.5%(mass) Au doping were synthesized by the coprecipitation (CP) and the deposition-precipitation (DP) processes respectively.They were tested in a flow reactor for total combustion of toluene
and characterized by XRD
BET
H2-TPR.The results showed that Au doping did not affect the texture properties of La0.8Sr0.2MnO3
but Au actually enhanced the surficial oxygen mobility of catalysts
and increased catalytic oxidation activity at a low temperature.Compared with Au/LSM
Au-LSM showed better catalytic performance
and its activity was similar to that of the commercial catalyst Pd/Al2O3.Au-LSM also had good stability because its performance did not change significantly after 50 h on stream in the temperature range of 280—400℃.