What is it about?
Anatase TiO2 with with preferential exposure of the reactive {001} facet were synthesized using vanadia as the structure-directing agent. The exposed fraction of the {001} facet approached 53% upon adjusting the V/Ti molar ratio of the synthetic solution. After calcination at 723 K in air, the resulting VOx/TiO2 truncated bipyramids effectively catalyzed the selective reduction of NO by ammonia.
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Why is it important?
we report a fluorine-free approach to synthesize anatase TiO2 with preferential exposure of {001} facet using vanadia as the structure-directing agent . After calcination at 723 K in air, the resulting VOx/TiO2 truncated bipyramids effectively catalyzed the selective reduction of NO by NH3.
Perspectives
Hydrothermal synthesis with the aid of Fâ was proposed to be most effective in promoting the exposure of the {001} facet of TiO2. However, the toxic and erosive nature of HF or F- usually led to environmental problems. we report a fluorine-free approach to synthesize anatase TiO2 with preferential exposure of {001} facet using vanadia as the structure-directing agent.
Yong Li
Dalian Institute of Chemical Physics,Chinese Academy of Sciences
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This page is a summary of: Vanadia directed synthesis of anatase TiO2truncated bipyramids with preferential exposure of the reactive {001} facet, CrystEngComm, January 2015, Royal Society of Chemistry,
DOI: 10.1039/c5ce00385g.
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