Abstract
We have defined the coefficient of oxygen diffusion in MgO (S spec = 55 m2/g) at 750 ° and 780 °C, the activation energy for diffusion by measuring oxygen diffusion rates at different degrees of surface reduction. The method used for defining the oxygen diffusion rate is based on the increase in the rate of oxide catalyst reduction (CO or H2) after keeping the sample in vacuum.
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References
G.K. Boreskov,Heterogeneous Catalysis (Nauka, Moscow, 1986).
P.A. Batist, C.J. Kapteyns, B.C. Lippens and G.C.A. Schist, J. Catal. 7 (1967) 33.
V.D. Sokolovskii, React. Kinet. Catal. Lett. 35 (1987) 337.
G.W. Keulks, L.D. Krenzke and T.M. Notermann, Adv. in Catal. 27 (1978) 183.
J. Novakova, Catal. Reviews 4 (1970) 77.
J.M. Viera and R.J. Brook, in:Structure and Properties of MgO and Al 2O3 Ceramics, ed. W.D. Kingery (American Society Press, 1984) 438.
Y. Oishi and K. Ando, ibid, 463.
Y. Ikuma and W. Komatsu, ibid, 438.
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Ovsitser, O.Y., Guljaev, K.S. & Sokolovskii, V.D. Study of oxygen diffusion in MgO in the process of surface reduction. Catal Lett 8, 379–384 (1991). https://doi.org/10.1007/BF00764200
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DOI: https://doi.org/10.1007/BF00764200