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Titania-supported mixed HPMoV polyoxometallates as precursors of hydrodesulfurization catalysts

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Abstract

HDS catalysts were prepared by loading H3PMo12O40 or H4PMo11V1O40 polyoxometallates on TiO2 (0.5 and 1.0 mmol (Mo+V)). Activity of the catalysts was tested in the HDS of thiophene. The activity of catalysts of low concentration was 2–3 times higher than the activity of those of high concentration. Temperature programmed reduction (TPR) and IR spectroscopy were used to determine the properties of the catalyst. TPR measurements proved that vanadium promotes and stabilizes HDS activity due to an increase in the Mo5+/Mo4+ ratio.

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Authors and Affiliations

  1. Institute of Catalysis, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

    Elka Kraleva, Alla Spojakina, Rumiana Edreva-Kardjieva & Lacezar Petrov

  2. Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, 165 02, Praha 6, Czech Republic

    Kveta Jiratova

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  1. Elka Kraleva
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  2. Alla Spojakina
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  3. Rumiana Edreva-Kardjieva
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  4. Kveta Jiratova
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  5. Lacezar Petrov
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Correspondence to Elka Kraleva.

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Kraleva, E., Spojakina, A., Edreva-Kardjieva, R. et al. Titania-supported mixed HPMoV polyoxometallates as precursors of hydrodesulfurization catalysts. React Kinet Catal Lett 92, 111–119 (2007). https://doi.org/10.1007/s11144-007-4896-8

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