In-Situ FT-IR Study on Methane Combustion over Pd/NiAl2O4 Catalyst

doi:10.3724/SP.J.1088.2012.20535

Abstract

Abstract: The mechanism of methane combustion on Pd/NiAl₂O₄ catalyst was studied by in-situ FT-IR spectroscopy. The results showed that the transformation from formate to carbonate was the rate-determining step for the reaction. After reaction under lean fuel condition, the active site of pre-reduced catalyst was still Pd-PdO mixed phase. The existence of metal Pd would convert O₂ to O₂^– species, which would facilitate the transformation from formate to carbonate.

Key words: palladium, nickel aluminum spinel, methane, catalytic combustion, in-situ infrared spectroscopy

LIU Ying, WANG Sheng, GAO Dian-Nan, PAN Qiu-Shi, WANG Shu-Dong. In-Situ FT-IR Study on Methane Combustion over Pd/NiAl₂O₄Catalyst[J]. Chinese Journal of Catalysis, 2012, 33(9): 1552-1557.

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URL: https://www.cjcatal.com/EN/10.3724/SP.J.1088.2012.20535

https://www.cjcatal.com/EN/Y2012/V33/I9/1552

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In-Situ FT-IR Study on Methane Combustion over Pd/NiAl₂O₄Catalyst

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