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À propos de : The Ti8C12 Metcar: A New Model Catalyst for Hydrodesulfurization        

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  • The Ti8C12 Metcar: A New Model Catalyst for Hydrodesulfurization
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  • Elementary reaction steps and barriers for thiophene hydrodesulfurization (HDS) on a Ti8C12 nanoparticlewere investigated using density functional theory. It is found that despite its high carbon concentration Ti8C12displays a superior catalytic potential for hydrodesulfurization. Compared to the industrial catalysts, thehydrogen dissociation and C−S bond cleavage on Ti8C12 are more facile, and the removal of sulfur isenergetically comparable. Our results also show that the catalytic activity of Ti8C12 can be associated with itsunique structure that is quite different from that of bulk metal carbides.
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