Microstructural changes of diesel soot during oxidation
β Scribed by Tomoji Ishiguro; Noritomo Suzuki; Yoshiyasu Fujitani; Hidetake Morimoto
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 732 KB
- Volume
- 85
- Category
- Article
- ISSN
- 0010-2180
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## Abstract A series of perovskiteβtype oxides and derived Ag catalysts were prepared, and characterized by N~2~βadsorption, Xβray diffraction and Xβray photoelectron spectroscopy. The influences of pretreatment and Ag loading on catalytic activity for diesel soot oxidation were also investigated.
The measurement of soot reactivity by thermogravimetric analysis is complicated by oxygen mass transfer limitations. The large surface area of the solid imposes local oxygen depletion, even with very small bed masses. An analytical solution has been developed to the equations describing flow above,