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

Quanquan Shi, Yong Li, Yan Zhou, Shu Miao, Na Ta, Ensheng Zhan, Jingyue Liu, Wenjie Shen

Research output: Contribution to journalArticle

35 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)14409-14415
Number of pages7
JournalJournal of Materials Chemistry A
Volume3
Issue number27
DOIs
StatePublished - Jul 21 2015

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ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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