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Browsing by Subject "SSITKA-DRIFTS"

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    • Article  

      The effect of La3+, Ti4+ and Zr4+ dopants on the mechanism of WGS on ceria-doped supported Pt catalysts 

      Petallidou, Klito C.; Kalamaras, Christos M.; Efstathiou, Angelos M. (2014)
      Platinum nanoparticles supported on single CeO2 and TiO 2 metal oxides and Ce0.8Ti0.2O 2-δ solid solution were prepared to investigate the effect of Ti4+-doping of ceria on important mechanistic and kinetic aspects of the ...

    • Article  

      The effect of La3+-doping of CeO2 support on the water-gas shift reaction mechanism and kinetics over Pt/Ce1-xLaxO2-δ 

      Kalamaras, Christos M.; Petallidou, Klito C.; Efstathiou, Angelos M. (2013)
      Platinum nanoparticles (dPt=1.0-1.2nm) supported on single CeO2 and La2O3 metal oxides and Ce0.8La0.2O2-δ solid solution were prepared to investigate for the first time the effect of La3+-doping of ceria on important ...

    • Article  

      The influence of reaction temperature on the chemical structure and surface concentration of active NOx in H2-SCR over Pt/MgO{single bond}CeO2: SSITKA-DRIFTS and transient mass spectrometry studies 

      Savva, Petros G.; Efstathiou, Angelos M. (2008)
      Steady-state isotopic transient kinetic analysis (SSITKA), transient isothermal, and temperature-programmed surface reaction in H2 (H2-TPSR) techniques coupled with online mass spectroscopy (MS) and in situ diffuse reflectance ...

    • Article  

      Kinetic and mechanistic studies of the water-gas shift reaction on Pt/TiO2 catalyst 

      Kalamaras, Christos M.; Panagiotopoulou, P.; Kondarides, D. I.; Efstathiou, Angelos M. (2009)
      A detailed kinetic and mechanistic study of the water-gas shift (WGS) reaction on a 0.5 wt% Pt/TiO2 catalyst has been carried out. The dependence of kinetic reaction rate on the partial pressures of reactants (CO, H2O) and ...

    • Article  

      Low-temperature water-gas shift on Pt/Ce0.5La0.5O2 - δ: Effect of support synthesis method 

      Petallidou, Klito C.; Boghosian, Soghomon; Efstathiou, Angelos M. (2015)
      A series of 0.5 wt% Pt/Ce0.5La0.5O2 - δ (Ce:La = 1:1) catalysts, the supports of which were prepared by different methods, namely: (i) sol-gel using citrate or oxalate as complexing agent, (ii) pechini, and (iii) urea ...

    • Article  

      Mechanistic studies of the water-gas shift reaction over Pt/Ce xZr1-xO2 catalysts: The effect of Pt particle size and Zr Dopant 

      Kalamaras, Christos M.; Dionysiou, Dionysios Demetriou D.; Efstathiou, Angelos M. (2012)
      A series of y wt % Pt/CexZr1-xO2 catalysts (y = 0.1, 0.5, and 1.0

    • Article  

      "Redox" vs "associative formate with -OH group regeneration" WGS reaction mechanism on Pt/CeO2: Effect of platinum particle size 

      Kalamaras, Christos M.; Americanou, Sofia; Efstathiou, Angelos M. (2011)
      A series of x wt.% Pt/CeO2 catalysts (x = 0.1-2.0) was prepared to investigate for the first time the effect of Pt particle size on important kinetic and mechanistic aspects of the water-gas shift (WGS) reaction, namely ...

    • Article  

      Selective catalytic reduction of NO by H2/C3H6 over Pt/Ce1-xZrxO2-Δ: The synergy effect studied by transient techniques 

      Kalamaras, Christos M.; Olympiou, G. G.; Pârvulescu, V. I.; Cojocaru, B.; Efstathiou, Angelos M. (2017)
      A series of Pt/CexZr1-xO2-δ(x = 0.4–0.6) solids were synthesized and evaluated for the SCR of NO under lean burn conditions (2.5 vol% O2) using C3H6and H2as reducing agents. SSITKA-Mass Spectrometry, SSITKA-DRIFTS and other ...

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