Surface area stability of lanthanum-doped ceria

Abstract : High surface area ceria was doped with lanthanum ions and calcined at 900 K under various partial pressures of oxygen and water vapour. The kinetic rates of crystallite size increase were observed to vary as . By addition of 0.5 and 1% of lanthanum ions, the rates were lowered, and then significantly decreased for 10% (cat.). A model of this process involved association between lanthanum ions and oxygen vacancies in order to explain the better stability of doped ceria.
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Solid State Ionics, Elsevier, 1993, 63-65, pp.781-785. 〈10.1016/0167-2738(93)90196-A〉
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https://hal-emse.ccsd.cnrs.fr/emse-00610365
Contributeur : Andrée-Aimée Toucas <>
Soumis le : jeudi 21 juillet 2011 - 16:35:55
Dernière modification le : mercredi 29 novembre 2017 - 10:06:59

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Michèle Pijolat, Marie-Agnès Prin, Michel Soustelle, Olivier Touret, Patrice Nortier. Surface area stability of lanthanum-doped ceria. Solid State Ionics, Elsevier, 1993, 63-65, pp.781-785. 〈10.1016/0167-2738(93)90196-A〉. 〈emse-00610365〉

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