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High-throughput approach to the catalytic combustion of diesel soot II: Screening of oxide-based catalysts
- Source :
- Catalysis Today, Catalysis Today, Elsevier, 2011, 159 (1), pp.138-143. ⟨10.1016/j.cattod.2010.05.042⟩, Catalysis Today, Elsevier, 2011, 159, pp.138-143. ⟨10.1016/j.cattod.2010.05.042⟩
- Publication Year :
- 2011
- Publisher :
- HAL CCSD, 2011.
-
Abstract
- Following the development of a high-throughput (HT) methodology for the evaluation of diesel soot oxidation catalysts in a 16 parallel channels reactor, a library of over 60 catalysts was tested under optimized conditions. The catalyst compositions were chosen to include solids which specific properties like oxygen storage capacity, oxygen mobility and ionic conductivity. The key parameters for high activity appear related to the presence of active and mobile surface oxygen species, and to an appropriate catalyst particle size in order to favour the number of contacts with the soot. In contrast, high oxygen storage capacity and bulk oxygen ion mobility do not appear as relevant properties for high catalytic activity. Nine new formulations were found to perform better than the reference catalyst “high surface area (HSA) ceria” (Rhodia).
- Subjects :
- Diesel exhaust
Catalyst support
Inorganic chemistry
Oxide
chemistry.chemical_element
Catalytic combustion
02 engineering and technology
010402 general chemistry
Heterogeneous catalysis
medicine.disease_cause
complex mixtures
01 natural sciences
Oxygen
Catalysis
chemistry.chemical_compound
medicine
ComputingMilieux_MISCELLANEOUS
Chemistry
General Chemistry
[CHIM.CATA]Chemical Sciences/Catalysis
021001 nanoscience & nanotechnology
[SDE.ES]Environmental Sciences/Environmental and Society
Soot
0104 chemical sciences
[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 09205861
- Database :
- OpenAIRE
- Journal :
- Catalysis Today, Catalysis Today, Elsevier, 2011, 159 (1), pp.138-143. ⟨10.1016/j.cattod.2010.05.042⟩, Catalysis Today, Elsevier, 2011, 159, pp.138-143. ⟨10.1016/j.cattod.2010.05.042⟩
- Accession number :
- edsair.doi.dedup.....e1bb41c89fdf718f7e67dc3cb8e81cd2