Multiple and antagonistic effects of water on intrinsic physical properties of model Fischer-Tropsch cobalt catalysts evidenced with in situ X-ray diffraction.

Julien Scalbert; Christèle Legens; I. Clemencon; Anne-Lise Taleb; Loïc Sorbier; Fabrice Diehl

Multiple and antagonistic effects of water on intrinsic physical properties of model Fischer-Tropsch cobalt catalysts evidenced with in situ X-ray diffraction.

Julien Scalbert ^{1, *} Christèle Legens ¹ I. Clemencon ¹ Anne-Lise Taleb ¹ Loïc Sorbier ¹ Fabrice Diehl ¹

* Corresponding author

Abstract : Direct evidence for cobalt oxidation under water treatment at 230 °C was revealed with in situ XRD. Oxidation kinetics was proved to be particle size dependent. Resulting Co3O4 showed a firmly smaller coherent domain size than the initial calcined catalyst. Several physical phenomena were proposed to occur during cobalt oxidation by water.

Document type :

Journal articles

Domain :

Chemical Sciences / Catalysis

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https://hal-ifp.archives-ouvertes.fr/hal-01053703
Contributor : Françoise Bertrand <>
Submitted on : Friday, August 1, 2014 - 11:00:33 AM
Last modification on : Thursday, February 7, 2019 - 5:15:56 PM
Long-term archiving on : Tuesday, November 25, 2014 - 10:46:01 PM

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Multiple and antagonistic effects of water on intrinsic physical properties of model Fischer-Tropsch cobalt catalysts evidenced with in situ X-ray diffraction.

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Multiple and antagonistic effects of water on intrinsic physical properties of model Fischer-Tropsch cobalt catalysts evidenced with in situ X-ray diffraction.

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