Citation:
SUN Ying, HUANG Yan, ZHAO Wei, SU qian, ZHANG Jun-feng, YANG Liu-chun. Research on catalytic performance of supported perovskite catalyst for NO oxidation and resistance to SO2 poisoning[J]. Journal of Fuel Chemistry and Technology,
;2014, 42(10): 1246-1252.
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Supported perovskite-type catalysts La1-xCexCoO3/CeO2 (x = 0~0.3) were synthesized through complexing impregnation with citric acid and characterized by X-ray diffraction (XRD), Fourier transformed infrared (FT-IR), nitrogen adsorption, H2 temperature-programmed reduction (H2-TPR), and O2 temperature-programmed desorption (O2-TPD). The performance of NO catalytic oxidation and SO2 resistance were investigated in the article. The results showed that the catalytic activity of La1-xCexCoO3/CeO2 was closely related to the surface area and redox properties. Especially La0.8Ce0.2CoO3/CeO2 achieved 78% NO conversion at 300 ℃.The introduction of CeO2 as support simultaneously enhanced the low temperature activity and SO2 resistance.
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