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Více informací o knize NOx-reductive Perovskite catalysts for lean-burn engines

• Parametry knihy
• Anotace
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Anotace knihy

In the present work Pd- and Rh- integrated perovskites are developed and characterized regarding the state of Pd and catalytic activity by means of microstructural and spectroscopic methods (XRD, SEM, TEM, XPS, and -SCR-NOx). Pd in the La- based perovskite partially displays a reversible diffusion mechanism under redox atmospheres at 600° C. These effects produce a self-regenerative mechanism at relatively high temperatures. Catalytic testing under model gas mixtures of powders and coatings of these perovskites proves the potential of these materials for effective NOx-reduction under lean conditions. Hydrogen provides the best NO- reduction results among the employed reducing agents (i.e. H2, C3H6, and C8H18). The Pd-integrated Perovskites display peak NO-conversions of 72 % and N2-selectivities of 72 % in the presence of H2O- vapour and CO2 at temperatures below 300°C. For instance, Ba- and Ce- substituted perovskites are also active for NO-reduction up to 400°C.

Parametry knihy

Zařazení knihy Knihy v angličtině Technology, engineering, agriculture Environmental science, engineering & technology

• Plný název: NOx-reductive Perovskite catalysts for lean-burn engines
• Autor: Guillermo César Mondragón Rodríguez
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 164
• EAN: 9783838111827
• ISBN: 3838111826
• ID: 06956715
• Nakladatelství: Sudwestdeutscher Verlag Fur Hochschulschriften AG
• Hmotnost: 249 g
• Rozměry: 229 × 152 × 11 mm
• Datum vydání: 26. October 2009

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