Flame-made ceria nanoparticles
By Lutz Mädler, W. Stark, S. E. Pratsinis. 2002
327 citations recorded by the source corpus.
Flame spray pyrolysis (FSP) has been used to synthesize high-surface-area ceria from cerium acetate in acetic acid solution. With the addition of an iso-octane/2-butanol mixture to that solution, homogeneous CeO_2 nanoparticles were obtained. The specific surface area of the powders ranged from 240 to 101 m^2/g by controlling the oxygen dispersion and liquid precursor flow rates through the flame. Furthermore, for production rates from 2 to 10 g/h a constant average primary particle size could be obtained at selected process parameters. The ceria showed high crystallinity and primary particles with a stepped surface. The powder exhibited good thermal stability and conserved up to 40% of its initial specific surface area when calcinated for 2 h at 900 °C. This shows the potential of FSP made ceria for high-temperature applications as in three-way catalysts or fuel cells.
Subfields: Catalysis, Materials Chemistry, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/2073b1d200c54b1d6b181acf8982e37382101857
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Citations in the corpus
- Diesel Engine Emission Reduction Using Catalytic Nanoparticles: An Experimental Investigation (2013, methodology): “[20] explained flame spray pyrolysis (FSP) which is a promising technique for synthesis of high purity nanosized materials with controlled size and crystallinity in one step.”
- Photocatalytic degradation of methylene blue by a combination of TiO2-anatase and coconut shell activated carbon (2012, background): “The possible reasons for this difference are polydispersity because dBET is a surfaceweighted particle property, whereas dXRD is a mass-weighted particle property, which would lead to dBET/dXRDb1 [47].”
- Comparison of the Mechanism of Toxicity of Zinc Oxide and Cerium Oxide Nanoparticles Based on Dissolution and Oxidative Stress Properties (2008, unknown): “5 M metal solution.(36,37) The ZnO precursor was prepared by mixing zinc naphthenate 8% (Zn by wt) (Aldrich, CAS Number 12001-85-3) with xylene at appropriate ratios to achieve a 0.”