Catalytic Activity of Fe2O3/YSZ-γ-Al2O3for Methane Combustion

Abstract

Abstract: Catalysts for methane combustion were prepared by Fe₂O₃supported on γ-Al 2O₃, ZrO₂-γ-Al₂O₃, YSZ(Yttria stabilize Zirconia)-γ-Al₂O₃, respectively. Among the three kinds of catalysts, Fe₂O₃/YSZ-γ-Al₂O₃show the highest activity and best thermal stability. XPS result demonstrates that the addition of ZrO₂and Y₂O₃can increase and stabilize the surface concentration of Fe₂O₃and decrease the interaction between iron species and γ-Al₂O₃support. Fe₂O₃/YSZ-γ-Al₂O₃catalyst with a mass fraction of Fe₂O₃10% has the highest catalytic activity. XRD result indicate that the catalytic activity is related to the state of Fe₂O₃dispersion on the support.

Key words: Catalyts for methane combustion, YSZ-γ-Al₂O₃support, XPS, XRD

CLC Number:

O643.322

TrendMD:

LI Li-Na, CHEN Yao-Qiang, GONG Mao-Chu, XIANG Yun . Catalytic Activity of Fe₂O₃/YSZ-γ-Al₂O₃for Methane Combustion[J]. Chem. J. Chinese Universities, 2003, 24(12): 2235.

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Catalytic Activity of Fe₂O₃/YSZ-γ-Al₂O₃for Methane Combustion

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