Seed-assisted sol–gel synthesis and characterization of nanoparticular V2O5/anatase
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Nanoparticular supported vanadia materials with crystalline anatase support with a narrow size distribution around 12 nm have been synthesized by a new facile sol–gel, co-precipitation method using decomposable ammonium chloride seed crystals. The materials have been characterized by means of X-ray powder diffraction, transmission electron microscopy and nitrogen physisorption. The synthesized high-surface area anatase particles allowed a loading of up to 15 wt.% vanadia without exceeding monolayer coverage of V2O5 in contrast to typical analogous industrial catalysts which only can accommodate 3–5 wt.% vanadia. These materials are promising candidates for improved catalysts for, e.g., oxidation reactions and selective catalytic reduction of NO X in flue gases.
KeywordsSelective Catalytic Reduction Vanadium Oxide Selective Catalytic Reduction Catalyst Anatase Particle Composite Nanorods
The Center for Sustainable and Green Chemistry is sponsored by the Danish National Research Foundation, and the work was supported by the Danish Research Council for Technology and Production Sciences, Elkraft Systems (PSO FU5201), the USACH Program and the Communidad Autónoma de Madrid (CAM-GR/AMB/0751/2004). We thank K. Egeblad and S.K. Klitgaard (Technical University of Denmark) for the TEM recordings.
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