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

Sichem Guerrero; Igor Guzmán; Gonzalo Aguila; Paulo Araya

doi:10.1016/j.catcom.2009.08.006

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

Sichem Guerrero^*, Igor Guzmán, Gonzalo Aguila, Paulo Araya

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

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 language	English
Pages (from-to)	38-42
Number of pages	5
Journal	Catalysis Communications
Volume	11
Issue number	1
DOIs	https://doi.org/10.1016/j.catcom.2009.08.006
State	Published - 10 Oct 2009
Externally published	Yes

Bibliographical note

Funding Information:
The funding from the CIMAT project No. 11980002 is gratefully acknowledged for funding this work.

Keywords

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

Access to Document

10.1016/j.catcom.2009.08.006

Cite this

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title = "Sodium-promoted NO adsorption under lean conditions over Cu/TiO2 catalysts",

abstract = "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.",

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author = "Sichem Guerrero and Igor Guzm{\'a}n and Gonzalo Aguila and Paulo Araya",

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AU - Guerrero, Sichem

AU - Guzmán, Igor

AU - Aguila, Gonzalo

AU - Araya, Paulo

N1 - Funding Information: The funding from the CIMAT project No. 11980002 is gratefully acknowledged for funding this work.

PY - 2009/10/10

Y1 - 2009/10/10

N2 - 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.

AB - 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.

KW - Cu H-TPR

KW - Cu/TiO

KW - FTIR

KW - NO adsorption

KW - NO oxidation

KW - Na/Cu/TiO

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DO - 10.1016/j.catcom.2009.08.006

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SP - 38

EP - 42

JO - Catalysis Communications

JF - Catalysis Communications

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