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Real Structure - Oxygen Mobility Relationship in Nanocrystalline Doped Ceria-Zirconia Fluorite-Like Solid Solutions Promoted by Pt

Published online by Cambridge University Press:  20 February 2017

Vladislav Sadykov ,
N. Mezentseva ,
V. Muzykantov ,
D. Efremov ,
E. Gubanova ,
N. Sazonova ,
A. Bobin ,
E. Paukshtis ,
A. Ishchenko  and
V. Voronin
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Vladislav Sadykov
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia Novosibirsk State University, Novosibirsk, 630090, Russia
N. Mezentseva
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
V. Muzykantov
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
D. Efremov
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
E. Gubanova
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
N. Sazonova
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
A. Bobin
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia Novosibirsk State University, Novosibirsk, 630090, Russia
E. Paukshtis
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia Novosibirsk State University, Novosibirsk, 630090, Russia
A. Ishchenko
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia Novosibirsk State University, Novosibirsk, 630090, Russia
V. Voronin
Affiliation:
Institute of Metals Physics UB RAS, Yekaterinburg, 234005, Russia
J. Ross
Affiliation:
Centre of Environmental Research, University of Limerick, Limerick, Ireland
C. Mirodatos
Affiliation:
Institut de Recherches sur la Catalyse et l'Environnement de Lyon, 69626 Villeurbanne Cedex, France.
A. van Veen
Affiliation:
Institut de Recherches sur la Catalyse et l'Environnement de Lyon, 69626 Villeurbanne Cedex, France.
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Abstract

This work considers effect of type and content of dopant on the real structure, state of surface Pt species and oxygen mobility of nanocrystalline Lnx(Ce0.5Zr0.5)1-xO2-δ (Ln=La3+, Gd3+, Pr3+/4+) solid solutions prepared by Pechini route. For the reactions of methane selective oxidation and dry reforming into syngas, catalytic activity correlates rather well with either surface (in diluted feeds) or bulk (in realistic feeds) oxygen mobility as well as Pt dispersion controlled by the type and content of a dopant.

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References

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