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

In this work, a series of palladium supported on the La 0.8 Sr 0.2 MnO 3.15 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, H 2 -TPR and XPS. These catalysts were eva...

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Bibliographic Details
Published inScientific reports Vol. 6; no. 1; p. 19511
Main Authors Wang, Wei, Yuan, Fulong, Niu, Xiaoyu, Zhu, Yujun
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 19.01.2016
Nature Publishing Group
Subjects
140/146
639/638/549/908
639/638/77/884
Catalysts
Combustion
Decomposition
Humanities and Social Sciences
Methane
multidisciplinary
Nanoparticles
Natural gas vehicles
Oxygen
Palladium
Science
Temperature effects
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Summary:In this work, a series of palladium supported on the La 0.8 Sr 0.2 MnO 3.15 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, H 2 -TPR and XPS. These catalysts were evaluated on the lean CH 4 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 CH 4 combustion that temperature for 10% and 90% of CH 4 conversion is 315 and 520 °C.
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ISSN:2045-2322
2045-2322
DOI:10.1038/srep19511