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

Abstract

The 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.
Author M. Rajska - [AGH University of Science and Technology (AGH)]
M. Rajska,,
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- Akademia Górniczo-Hutnicza
, Bartosz Wójtowicz - [AGH University of Science and Technology (AGH)]
Bartosz Wójtowicz,,
-
- Akademia Górniczo-Hutnicza
, Lłukasz Klita - [AGH University of Science and Technology (AGH)]
Lłukasz Klita,,
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- Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
, Lłukasz Zych - [AGH University of Science and Technology (AGH)]
Lłukasz Zych,,
-
- Akademia Górniczo-Hutnicza
, Rafał Zybała (FMSE / DMD)
Rafał Zybała,,
- Division of Materials Design
Journal seriesE3S Web of Conferences, [Environment, energy and earth sciences web of conferences], ISSN 2267-1242
Issue year2016
Vol10
Pages1-6
Publication size in sheets0.5
Article number00130
DOIDOI:10.1051/e3sconf/20161000130
Languageen angielski
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Rajska et al. - 2016 - The use of CeO2-Co3O4 oxides as a catalyst for the reduction of N2O emission.pdf 1.85 MB
Score (nominal)5
Score sourcejournalList
ScoreMinisterial score = 0.0, 11-05-2020, ArticleFromJournal
Ministerial score (2013-2016) = 5.0, 11-05-2020, ArticleFromJournal
Publication indicators Scopus Citations = 2; GS Citations = 3.0; WoS Citations = 1
Citation count*3 (2020-08-24)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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