The properties of cobalt oxide catalyst for ammonia oxidation
Krzysztof Schmidt-Szałowski , Krzysztof Krawczyk , Jan Petryk
AbstractA cobalt oxide catalyst for ammonia oxidation of high and stable activity and selectivity has been obtained and tested in a fluidized bed laboratory reactor. Its active component is Co3O4. It has been found that much less nitrous oxide is produced in ammonia oxidation on this catalyst than on platinum. The macrostructure of the cobalt catalysts, and especially the presence of mesopores of diameter \<0.1 μm have an essential effect on their activity and selectivity and on the stability of these properties. In the macrostructure of selective and stable catalysts the share of the mesopores \<0.1 μm is extremely low, while the total pore volume amounts from some tens to a hundred and some tens of mm3/g. A hypothetical model has been presented to explain the effect of the catalyst's macrostructure on its properties.
|Journal series||Applied Catalysis A-General, ISSN 0926-860X|
|Keywords in English||Ammonia oxidation, Co3O4, Cobalt catalyst, CoO formation, Deactivation mechanism, Macrostructure of granules, Reagent interaction, selectivity|
|Publication indicators||: 2006 = 2.63 (2) - 2007=3.34 (5)|
|Citation count*||65 (2016-08-24)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.