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Topics in Catalysis
Erschienen in: Topics in Catalysis 10-12/2016

03.05.2016 | Original Paper

High Intrinsic Catalytic Activity of CeVO4-Based Catalysts for Ammonia-SCR: Influence of pH During Hydrothermal Synthesis

verfasst von: Sylvain Gillot, Jean-Philippe Dacquin, Christophe Dujardin, Pascal Granger

Erschienen in: Topics in Catalysis | Ausgabe 10-12/2016

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Abstract

The catalytic activity of unsupported CeVO4 solid was investigated in ammonia-SCR at various NO/NOx ratio. CeVO4 structure was obtained from a straightforward hydrothermal synthesis route under mild conditions and then stabilized after ageing in wet atmosphere at 600 °C. The influence of pH measured after the hydrothermal treatment could be a crucial parameter to get optimal bulk and surface properties. The evolution of intrinsic catalytic activity was compared with regards to bulk and surface properties extracted from extensive characterization. The stabilization of V5+ in CeVO4 structure during NH3-SCR reactions was observed even after thermal aging at high temperature. This opens new perspectives for vanadium-based catalysts in mobile sources applications.
Vorheriger Artikel Application of PdCe-HMOR Catalyst as NOx CH4-SCR System for Heavy-Duty Vehicles Moved by Natural Gas
Nächster Artikel Enhanced Stability of Fe2O3-Doped FeVO4/TiO2–WO3–SiO2 SCR Catalysts

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Metadaten
Titel
High Intrinsic Catalytic Activity of CeVO4-Based Catalysts for Ammonia-SCR: Influence of pH During Hydrothermal Synthesis
verfasst von
Sylvain Gillot
Jean-Philippe Dacquin
Christophe Dujardin
Pascal Granger
Publikationsdatum
03.05.2016
Verlag
Springer US
Erschienen in
Topics in Catalysis / Ausgabe 10-12/2016
Print ISSN: 1022-5528
Elektronische ISSN: 1572-9028
DOI
https://doi.org/10.1007/s11244-016-0579-x

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