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

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.
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Julien Scalbert, Christèle Legens, I. Clemencon, Anne-Lise Taleb, Loïc Sorbier, et al.. Multiple and antagonistic effects of water on intrinsic physical properties of model Fischer-Tropsch cobalt catalysts evidenced with in situ X-ray diffraction.. Chemical Communications, Royal Society of Chemistry, 2014, 50 (58), pp.7866-7869. ⟨10.1039/c4cc00947a⟩. ⟨hal-01053703⟩

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