Abstract
The structure of sulfided Mo-catalysts and their oxidic precursors has been abundantly studied, but the genesis
of the active phase has remained much less investigated. The sulfidation (in H2S/H2 atmosphere) of a series
of MoO3/SiO2 catalysts has been examined by means of temperature-programmed sulfidation, X-ray absorption
fine structure, and transmission electron microscopy.The oxidic,
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