Issue 27, 2015

The shape effect of TiO2 in VOx/TiO2 catalysts for selective reduction of NO by NH3

Abstract

Anatase TiO2 nanosheets exposing 74% of {001} facets and nanospindles exposing 81% of {101} facets were hydrothermally synthesized with the aid of F and CH3COO, respectively. Upon vanadia loading at a monolayer amount level, the {001} facets on TiO2 nanosheets favored the deposition of octahedral vanadia species, but the {101} facets on TiO2 nanospindles resulted in the formation of tetrahedral vanadia species. The shape effect of TiO2, in terms of its predominantly exposed crystal facets, on the catalytic performance of VOx/TiO2 samples for selective reduction of NO with NH3 was examined. The octahedral vanadia species on TiO2 nanosheets showed a significantly higher activity than the tetrahedral vanadia species on TiO2 nanospindles.

Graphical abstract: The shape effect of TiO2 in VOx/TiO2 catalysts for selective reduction of NO by NH3

Supplementary files

Article information

Article type
Paper
Submitted
21 Apr 2015
Accepted
03 Jun 2015
First published
03 Jun 2015

J. Mater. Chem. A, 2015,3, 14409-14415

The shape effect of TiO2 in VOx/TiO2 catalysts for selective reduction of NO by NH3

Q. Shi, Y. Li, Y. Zhou, S. Miao, N. Ta, E. Zhan, J. (. Liu and W. Shen, J. Mater. Chem. A, 2015, 3, 14409 DOI: 10.1039/C5TA02897C

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