Preparation of Pd supported on La(Sr)-Mn-O Perovskite by microwave Irradiation Method and Its Catalytic Performances for the Methane Combustion

Scientific Reports
Wei WangYujun Zhu

Abstract

In this work, a series of palladium supported on the La0.8Sr0.2MnO3.15 perovskite catalysts (Pd/LSM-x) with different Pd loading were prepared by microwave irradiation processing plus incipient wetness impregnation method and characterized by XRD, TEM, H2-TPR and XPS. These catalysts were evaluated on the lean CH4 combustion. The results show that the Pd/LSM-x samples prepared by microwave irradiation processing possess relative higher surface areas than LSM catalyst. The addition of Pd to the LSM leads to the increase in the oxygen vacancy content and the enhancement in the mobility of lattice oxygen which play an important role on the methane combustion. The Pd/LSM-3 catalysts with 4.2wt% Pd loading exhibited the best performance for CH4 combustion that temperature for 10% and 90% of CH4 conversion is 315 and 520 °C.

References

Nov 17, 2001·Chemical Reviews·M A Peña, J L Fierro
Sep 26, 2014·Chemical Reviews·Sébastien RoyerHoushang Alamdari

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Citations

Dec 21, 2017·ACS Applied Materials & Interfaces·Yiling DaiMichael O Wolf
Nov 14, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Xuemei ChenZuankai Wang

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