The use of CeO2-Co3O4 oxides as a catalyst for the reduction of N2O emission
M. Rajska , Bartosz Wójtowicz , Lłukasz Klita , Lłukasz Zych , Rafał Zybała
AbstractThe morphological characterization of a series of cobalt-cerium oxide composites prepared by the deposition of CeO2 onto Co3O4 powder with a molar ratio of cerium oxide to Co3O4 in the range of 0 to 1 was performed. The powders were also impregnated with a solution of K2CO3 to obtain the theoretical content of potassium atoms 2at∙nm-2. To investigate the effect of adding specific amount of CeO2 on the catalytic activity, the X-ray diffraction, SEM-EDX, laser particle size distribution and BET surface area measurements were used. The catalysts were tested through the low-temperature decomposition of nitrous oxide in the temperature range of 50°C to 700°C. The addition of CeO2 and K always moved the temperature of a complete N2O conversion towards lower temperatures (480°C-540°C to 340°C-420°C). The best catalytic properties were shown by the samples in which the ratio of cerium oxide to cobalt oxide ranged from 0.4 to 0.7.
|Journal series||E3S Web of Conferences, [Environment, energy and earth sciences web of conferences], ISSN 2267-1242|
|Publication size in sheets||0.5|
|Score|| = 0.0, 11-05-2020, ArticleFromJournal|
= 5.0, 11-05-2020, ArticleFromJournal
|Publication indicators||= 2; = 3.0; = 1|
|Citation count*||3 (2020-08-24)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.