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 F− 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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