Abstract
The catalytic oxidation of hydrogen on porous polycrystalline Ni films supported on stabilized zirconia was studied at temperatures between 240 and 410 °C and atmospheric total pressure. The technique of solid electrolyte potentiometry (SEP) was used to monitor the chemical potential of oxygen adsorbed on the nickel catalyst. The steady-state kinetic and potentiometric measurements indicate formation of a stable nickel oxide and its reduction by hydrogen. Over a wide range of temperature and gas composition both the reaction rate and the surface oxygen activity exhibit sustained oscillatory behavior. A kinetic model based on the kinetic and potentiometric results is discussed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
