Nanocrystalline V2O5, WO3/( CeO2-TiO2) and V2O5, WO3/( Y2O3-TiO2) catalysts with enhance thermal stability and activity in the reduction of NO with NH3 into N-2

R. A. Shutilov, A. A. Shutilov, G. A. Zenkovets

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

It was shown that V2O5, WO3/(CeO2-TiO2) and V2O5, WO3/(Y2O3 -TiO2) catalysts prepared with TiO2 support doped with ceria or yttria demonstrate the high catalytic activity and enhanced thermal stability in selective catalytic reduction NO by NH3 to N2 compared to the well-known industrial V2O5, WO3/TiO2 catalysts. It is due to the use the catalysts preparation of ceria or yttria doped TiO2 of anatase phase as a new support. Modification of TiO2 with ceria or yttria additives leads to the formation of nanocrystalline structure of anatase which is more stable under the heating at 850 °C compared of a pure anatase with regular crystal structure. Increasing the thermal stability of support leads to the high thermal stability of the supported V2O5, WO3/(CeO2 - TiO2) and V2O5, WO3/(Y2O3 -TiO2) catalysts characterized by the developed specific surface area.

Original languageEnglish
Pages (from-to)11490-11494
Number of pages5
JournalMaterials Today: Proceedings
Volume4
Issue number11
DOIs
Publication statusPublished - 2017
EventRussia-Japan Conference on Advanced Materials - Synthesis, Processing and Properties of Nanostructures (RJCAM) - Novosibirsk
Duration: 31 Oct 20163 Nov 2016

Keywords

  • Enhance thermal stability
  • Purification of diesel exhaust
  • Selective catalytic reduction of NO with ammonia to N
  • Textural properties
  • Vanadia supported nanocrystalline titania dopped with ceria and yttria
  • enhance thermal stability
  • purification of diesel exhaust
  • selective catalytic reduction of NO with ammonia to N-2
  • vanadia supported nanocrystalline titania dopped with ceria and yttria
  • textural properties

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