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      Novel glycerol dry reforming catalysts with monometallic and bimetallic active sites

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      Author(s)
      Akyürek, Salim Can
      Advisor
      Özensoy, Emrah
      Date
      2021-09
      Publisher
      Bilkent University
      Language
      English
      Type
      Thesis
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      Abstract
      Novel glycerol dry reforming catalysts with monometallic (Ru) and bimetallic (Ru and Ni or Ru and Co) active sites which are supported on a custom-design ternary mixed oxide support material (i.e., Al2O3-TiO2-ZrO2, AZT) with varying compositions were examined. Characterization of the synthesized catalytic system was carried out with XRD, Raman, BET, XPS, ICP-MS, SEM, and EDX techniques. Structure of the Ru active sites as a function of Ru loading was also investigated with in-situ FTIR spectroscopy via CO adsorption. Catalytic reactivity results revealed that 1 wt.% Ru/AZT70 catalyst can outperform the 1 wt.% Ru/La2O3-ZrO2 catalyst in GDR reaction, where the latter catalyst is known to be the best catalyst in the literature for GDR reaction. 0.5wt.% Ru/AZT70 catalyst showed close activity compared to 1wt.% Ru/AZT70 catalyst. Furthermore, catalytic promotional effect of Ni for low Ru loadings in GDR reaction was also demonstrated.
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      http://hdl.handle.net/11693/76541
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      • Dept. of Chemistry - Master's degree 147
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