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

^*Autor correspondiente de este trabajo

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

31 Citas (Scopus)

Resumen

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.

Idioma original	Inglés
Páginas (desde-hasta)	38-42
Número de páginas	5
Publicación	Catalysis Communications
Volumen	11
N.º	1
DOI	https://doi.org/10.1016/j.catcom.2009.08.006
Estado	Publicada - 10 oct. 2009
Publicado de forma externa	Sí

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10.1016/j.catcom.2009.08.006

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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.",

keywords = "Cu H-TPR, Cu/TiO, FTIR, NO adsorption, NO oxidation, Na/Cu/TiO",

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

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

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doi = "10.1016/j.catcom.2009.08.006",

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T1 - Sodium-promoted NO adsorption under lean conditions over Cu/TiO2 catalysts

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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SN - 1566-7367

VL - 11

SP - 38

EP - 42

JO - Catalysis Communications

JF - Catalysis Communications

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