Sodium-promoted NO adsorption under lean conditions over Cu/TiO2 catalysts

Sichem Guerrero, Igor Guzmán, Gonzalo Aguila, Paulo Araya

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


A dramatic improvement of Cu/TiO2 as NO adsorbent was achieved by the addition of Na. It was observed that the improvement in NO adsorption was accompanied by the appearance of nitrate and nitrite species on the surface of the Na/Cu/TiO2 adsorbent. The presence of copper leads to an in situ oxidation of NO to NO2, which facilitates the formation and adsorption of nitrite and nitrates species. The presence of sodium results in less reducible copper species.

Original languageEnglish
Pages (from-to)38-42
Number of pages5
JournalCatalysis Communications
Issue number1
Publication statusPublished - 10 Oct 2009


  • Cu H-TPR
  • Cu/TiO
  • FTIR
  • NO adsorption
  • NO oxidation
  • Na/Cu/TiO

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Process Chemistry and Technology


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