Differences in catalysts
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I have a question for everyone: there are many types of catalysts. I would like to know what are the differences in the activation of oxidized-state catalysts, sulfided-state catalysts, metal catalysts, and reduced-state catalysts?
You’re classifying it based on the form in which the catalyst exists! Oxidized-state catalysts are generally in their state at the time of manufacture by the factory; during production they are converted to a sulfided state. When they lose their activity, their activity must be restored through regeneration processes, and the catalyst obtained at this stage is in a reduced state. (Another way of putting it is that the catalyst’s oxidation state is reduced to a single metallic state; it depends on individual understanding and the context of application.) ）