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Energies of electronic states of promoter ions in hydrodesulfurization catalysts

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Abstract

Structural and textural characteristics of hydrodesulfurization catalysts [NiO (CoO)-MoO3/g-Al2O3] in oxide and sulfide forms were investigated by XRD, DRS, SEM and LTNA methods, after accelerated laboratory aging. The results pointed out to “surface spinel” formation and possibility of their stabilizing effect with respect to the support. Based on experimental DRS data of electronic d-d transitions of Ni(II) and Co(II) promoter ions in the catalysts, the parameter of crystal-field splitting 10Dq and energies of electronic states of promoter ions in the spinel-like structure were calculated. The most probable scheme of molecular orbital has been proposed.

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Authors and Affiliations

  1. Faculty of Technical Sciences, Department of Graphical Engineering and Design Trg D. Obradovića 6, 21000, Novi Sad, Serbia and Montenegro

    Jelena S. Kiurski

  2. Faculty of Science and Mathematics, Department of Physics Trg D. Obradovića 4, 21000, Novi Sad, Serbia and Montenegro

    Dušanka Ž. Obadović

  3. Faculty of Technology, Bul. Cara Lazara 1, 21000, Novi Sad, Serbia and Montenegro

    Radmila P. Marinković -Nedučinc

Authors
  1. Jelena S. Kiurski
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  2. Dušanka Ž. Obadović
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  3. Radmila P. Marinković -Nedučinc
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Correspondence to Jelena S. Kiurski.

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Kiurski, J.S., Obadović, D.Ž. & Marinković -Nedučinc, R.P. Energies of electronic states of promoter ions in hydrodesulfurization catalysts. Reaction Kinetics and Catalysis Letters 82, 41–47 (2004). https://doi.org/10.1023/B:REAC.0000028803.38305.f1

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  • DOI: https://doi.org/10.1023/B:REAC.0000028803.38305.f1

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