Journal
CATALYSIS SCIENCE & TECHNOLOGY
Volume 7, Issue 8, Pages 1646-1649Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cy02673g
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- Boreskov Institute of Catalysis [0303-2016-0001]
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The self-sustained kinetic oscillations in the catalytic oxidation of methane over Ni foil have been studied at atmospheric pressure using an X-ray diffraction technique and mass spectrometry. It has been shown that the regular reaction-rate oscillations appear under oxygen-deficient conditions and the period of oscillations varies between approximately 200 and 4000 s. The operando measurements have revealed a higher activity of metallic Ni in the reaction than NiO oxide and have unambiguously showed that the oscillations arise due to the reversible bulk oxidation of Ni to NiO.
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