Oxygen species stabilized on the cobalt spinel nano-octahedra at various reaction conditions and their role in catalytic CO and CH4 oxidation, N2O decomposition and oxygen isotopic exchange

Filip Zasada,Joanna Gryboś,Eko Budiyanto,Janusz Janas,Zbigniew Sojka

Journal of Catalysis（2019）

Cited 30|Views3

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Abstract

•Oxygen and vacancy covered (1 1 1) facet of cobalt spinel is thoroughly described.•Surface redox state diagram reveals principal states of the spinel surface.•Quantitative assignment of the TPD-O2 results and DFT predicted desorption peaks.•The role of oxygen species in the investigated catalytic reactions is established.

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Key words

Co3O4,(1 1 1) facet,Reactive oxygen species,Isotopic exchange,First principles thermodynamics,Redox state,Methane combustion,Carbon monoxide oxidation,Nitrous oxide decomposition

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