Abstract: Nanocomposites based on Pr nickelate-cobaltite are promising materials due to a high oxygen mobility and relatively good chemical stability in working conditions. This work aims at studying performance of membranes based on such nanocomposite. A few PrNi0.5Co0.5O3-δ – Ce0.9 Y0.1O2-δ functional layers, MnFe2O4 – Ce0.9Gd0.1O2-δ buffer layer and Pt/Sm0.15Pr0.15Ce0.35Zr0.3O2-δ + LaNi0.9Pt0.1O3/ Pr0.3Ce0.35Zr0.35O2-δ/Al2O3 catalytic layers were consecutively deposed on Ni/Al foam substrate. The selectivity of methane oxidation into syngas increases with the inlet methane concentration which is typical for such membranes. CH4 conversion is up to 50 % with H2 content in the outlet feed being up to 25 % at 900 °C. H2/CO concentration ratio is >1. Hence, performance characteristics of the membrane demonstrate that these materials are promising for the practical application.

Cite: Sadykov V.A. , Krasnov A.V. , Fedorova Y.E. , Lukashevich A.I. , Eremeev N.F. , Skriabin P.I. , Valeev K.R. , Smorygo O.L.
Novel Nanocomposite Materials for Oxygen Separation Membranes
In compilation 10th International Conference on Sustainable Energy and Environmental Protection (June 27th – 30th, 2017, Bled, Slovenia): Hydrogen and Fuel Cells. – University of Maribor Press., 2017. – C.97-104. – ISBN 9789612860547. DOI: 10.18690/978-961-286-054-7.9 OpenAlex

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Jul 6, 2017

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W2736198756

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