Nanocrystalline La0·8K0·2Fe0·5Mn0·45CO0·05O3 catalysts for removal of soot from diesel engine exhausts
| Autor: | Yi Xi Cai, Lin Zhang, Lei Lili, Pan Wang, X. X. Meng |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Diesel exhaust Scanning electron microscope Mechanical Engineering Condensed Matter Physics medicine.disease_cause Diesel engine Dip-coating Nanocrystalline material Soot Catalysis Chemical engineering Mechanics of Materials medicine General Materials Science Composite material Porosity |
| Zdroj: | Materials Research Innovations. 17:62-65 |
| ISSN: | 1433-075X 1432-8917 |
| DOI: | 10.1179/1432891713z.000000000182 |
| Popis: | A citrate gel process and a citrate gel assisted dip coating method have been used to prepare the nanocrystalline La0·8K0·2Fe0·5Mn0·45CO0·05O3 (LKFMCO) powders and an LKFMCO catalyst. The catalyst was characterised by an X-ray diffraction (XRD), a scanning electron microscope (SEM), and a surface area analyzer (BET). Results showed that the LKFMCO catalyst presented a rather irregular porous structure, in which pores were distributed from about 0·5 to 1·5 μm. Following up on the bench test, soot reductions in diesel engine exhausts were investigated with the LKFMCO catalyst. It is shown that CO2 and CO concentration reduced under the treatment of the LKFMCO catalyst. The values of CO concentration reached to their highest level at different temperature. The LKFMCO catalyst exhibits a high soot catalytic activity. |
| Databáze: | OpenAIRE |
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