Structure and properties of Pd–Mn hexaaluminate catalysts modified with platinum for the high-temperature oxidation of methane


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The effect of Pt additives on the catalytic characteristics of a Pd-containing catalyst based on manganese hexaaluminate was studied. It was found that the bimetallic PtPd-containing catalysts based on MnLaAl11O19 with the Pt/Pd atomic ratio smaller than 0.25 exhibited a comparable or somewhat smaller activity in the methane oxidation, but their stability at elevated temperatures and gas flow rates was higher than that of the Pd-based catalyst. The state of the active constituent of the resulting catalysts was investigated. Main correlations between the state of the active component and the catalytic activity were revealed.

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S. Yashnik

Boreskov Institute of Catalysis, Siberian Branch

编辑信件的主要联系方式.
Email: yashnik@catalysis.ru
俄罗斯联邦, Novosibirsk, 630090

T. Surovtsova

Boreskov Institute of Catalysis, Siberian Branch

Email: yashnik@catalysis.ru
俄罗斯联邦, Novosibirsk, 630090

A. Ishchenko

Boreskov Institute of Catalysis, Siberian Branch

Email: yashnik@catalysis.ru
俄罗斯联邦, Novosibirsk, 630090

V. Kaichev

Boreskov Institute of Catalysis, Siberian Branch

Email: yashnik@catalysis.ru
俄罗斯联邦, Novosibirsk, 630090

Z. Ismagilov

Boreskov Institute of Catalysis, Siberian Branch; Institute of Coal Chemistry and Chemical Materials Science, Siberian Branch

Email: yashnik@catalysis.ru
俄罗斯联邦, Novosibirsk, 630090; Kemerovo, 650000

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