Comparative study of the kinetics of methane steam reforming on supported Ni and Sn/Ni alloy catalysts: The impact of the formation of Ni alloy on chemistry

We report the results of detailed kinetic studies for methane steam reforming on supported Ni and Sn/Ni surface alloy catalysts

Eranda Nikolla

2009

Scholarcy highlights

  • Steam reforming of hydrocarbons is a crucial reaction for the production of synthesis gas
  • We report the results of detailed kinetic studies for methane steam reforming on supported Ni and Sn/Ni surface alloy catalysts
  • A kinetic assessment of methane steam reforming on Sn/Ni/yttria-stabilized zirconia and Ni/YSZ catalysts is obtained using a combination of kinetic studies, isotopic-labeling experiments, and Density Functional Theory calculations
  • We found that the reaction rate on Sn/Ni/YSZ and Ni/YSZ is first-order with respect to methane and it is independent of the water partial pressure
  • We found that while on monometallic Ni the active sites
  • These findings provide important insights on the electrochemical steps that govern oxygen reduction reaction kinetics on La2NiO4 + δ electrocatalyst, and ways to optimize these materials as cathode electrocatalysts for intermediate temperature solid oxide fuel cells

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