Effect of cavities and cracks on diffusivity in coated catalyst layer

[Display omitted] •Cracks and cavities enhance transport of reactants within catalytic coating.•Coating of commercial LNT monolith was scanned in 3D by X-ray microtomography.•Cracks and cavities represented about 20% of the coated layer volume.•Effective diffusivity was 1.7 times higher in compariso...

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Veröffentlicht in:	Catalysis today 2013-11, Vol.216, p.142-149
Hauptverfasser:	Novák, Vladimír, Kočí, Petr, Gregor, Tomáš, Choi, Jae-Soon, Štěpánek, František, Marek, Miloš
Format:	Artikel
Sprache:	eng
Schlagworte:	3D digital reconstruction Catalysis Chemistry Coating Colloidal state and disperse state Diffusion Exact sciences and technology Exhaust gas aftertreatment General and physical chemistry Porous catalyst Porous materials Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry X-ray microtomography
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