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