Description: Das Projekt "Nanoscale perovskite-supported catalysts for the exhaust after treatment of natural gas vehicles with very low precious metal content" wird vom Umweltbundesamt gefördert und von Eidgenössische Materialprüfungs- und Forschungsanstalt durchgeführt. Palladium-doped perovskite catalysts for natural gas vehicles Alternative low noble metal-content (e.g. palladium) catalysts will be developed for the after treatment of the exhaust of natural gas fuelled vehicles. Material development will be pursued by combining innovative synthesis procedures with catalytic and spectroscopic analyses under close-to-real operation conditions. Background The CO2 risk, scarce oil resources and the increasing number of vehicles as well as the resulting increasingly stringent emission regulations demand for the development of alternative fuels. Natural gas, which contains more than 90Prozent methane, is an alternative fuel with less NOx and CO2 emissions compared to gasoline or diesel; furthermore, it offers the possibility to be blended easily with any amount of biogas. However, a catalytic converter is needed to remove remaining traces of methane from the exhaust. Aim The project aims at developing suitable automotive catalysts with novel formulation, reduced precious metal (e.g. palladium) content and increased long-term stability. The catalytic behaviour of selected materials will be pursued by analysing their structure, chemical state and reactivity under the cyclic reducing-oxidizing conditions typical of automotive catalysts. The intrinsic property of perovskite metal oxides to allow precious metal atoms to enter the crystal lattice and exit to the surface under oxidizing and reducing conditions, respectively, is exploited. Significance The current industrial development of suitable exhaust catalysts for the abatement of pollutant gases from natural gas vehicles is limited to the adaptation of present gasoline vehicle catalysts to natural gas operation. This project will provide a novel concept for the design of alternative automotive catalysts based on the results of combined analysis of catalytic and spectroscopic tests under conditions relevant to operation. Application he selected materials from laboratory tests will be lined on monoliths and tested in a real exhaust to evaluate the competitiveness with present formulations. The results should initiate follow-up work for the production of new effective natural gas vehicle catalysts with low noble metal contents. Due to the increasing interest for the use of natural gas and biogas as alternative fuels for passenger vehicles, city busses and utility vehicles, specific attention must be paid to the development of catalysts for the abatement of methane from the exhaust of natural gas vehicles.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Benzin ? Biogas ? Dieselkraftstoff ? Erdölvorrat ? Kraftstoff ? Palladium ? Abgaskatalysator ? Brennstoff ? CO2-Emission ? Erdgas ? Kfz-Abgas ? Material ? Katalysator ? Metalloxid ? Oxid ? Personenkraftwagen ? Resistenz ? Brunnen ? Edelmetall ? Innenstadt ? Kohlendioxid ? Methan ? Nutzfahrzeug ? Omnibus ? Regulierung ? Spektralanalyse ? Stickoxide ? Struktur-Wirkung-Beziehung ? Metall ? Gasförmiger Stoff ? Mischkunststoff ? Erdgasfahrzeug ? Emission ? Chemikalien ? Synthese ? Wettbewerbsfähigkeit ? Laborversuch ? Stadt ? Beseitigung ? Produktion ? Arbeit ? Bedarf ? Fahrzeug ? Forschungseinrichtung ? Risiko ? Planung ? Schadstoff ? Staat ? NACHFRAGE ? GEHALT ? GEMISCHT ? INDUSTRIELL ? LAENDER ? MISCHUNG ? MOEGLICHKEIT ? Muskelarbeit ? Alternativer Kraftstoff ? NEU ? Nachbehandlung ? Nanobereich ? OBERFLAECHE ? PROJEKT ? DAUER ? SPEZIFISCH ? Zins ? UNTER ? BETRAG ? EINGESCHRAENKT ? EINSATZ ? UNTERSUCHUNG ? VERGLEICHEN ? AUSGEWAEHLT ? VERHAELTNIS ? ENTWICKLUNG ? ERGEBNIS ? VERHALTEN ? Betriebsvorschrift ? Buchgrundstück ? VERMISCHUNG ? Vermehrung ? Verwertung ? GEGENWART ? STILLGELEGT ?
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2010-07-01 - 2013-06-30
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