Lean NO adsorption on copper catalysts supported on ceria and promoted with sodium

Sichem Guerrero; Gonzalo Águila; Paulo Araya

doi:10.1016/j.catcom.2012.09.004

Lean NO adsorption on copper catalysts supported on ceria and promoted with sodium

Sichem Guerrero, Gonzalo Águila, Paulo Araya

Engineering School

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

6 Citations (Scopus)

Abstract

The simultaneous presence of sodium and copper on novel Na/Cu/CeO ₂ and Na/Cu/CeY catalysts resulted in a dramatic increase in the catalytic adsorption of NO. Copper catalyzes the oxidation of NO to NO ₂, which is further adsorbed by the sodium phase. The intimate contact of both phases favors the formation of nitrates on the surface. The cooperative effect between the copper and sodium phases increases the reduction temperature of copper. It was found that the addition of copper induced a stabilizing effect on the surface area of the catalysts.

Original language	English
Pages (from-to)	183-190
Number of pages	8
Journal	Catalysis Communications
Volume	28
DOIs	https://doi.org/10.1016/j.catcom.2012.09.004
Publication status	Published - 5 Nov 2012

Keywords

CeO
CeO -Y
NO adsorption
NO oxidation
Na/Cu/CeO
Na/Cu/CeO -Y

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Process Chemistry and Technology

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10.1016/j.catcom.2012.09.004

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title = "Lean NO adsorption on copper catalysts supported on ceria and promoted with sodium",

abstract = "The simultaneous presence of sodium and copper on novel Na/Cu/CeO 2 and Na/Cu/CeY catalysts resulted in a dramatic increase in the catalytic adsorption of NO. Copper catalyzes the oxidation of NO to NO 2, which is further adsorbed by the sodium phase. The intimate contact of both phases favors the formation of nitrates on the surface. The cooperative effect between the copper and sodium phases increases the reduction temperature of copper. It was found that the addition of copper induced a stabilizing effect on the surface area of the catalysts.",

keywords = "CeO, CeO -Y, NO adsorption, NO oxidation, Na/Cu/CeO, Na/Cu/CeO -Y",

author = "Sichem Guerrero and Gonzalo {\'A}guila and Paulo Araya",

note = "Funding Information: We gratefully acknowledge the Chilean National Science and Technology Research Fund (FONDECYT) , project no. 3100068 for funding this work.",

year = "2012",

month = nov,

day = "5",

doi = "10.1016/j.catcom.2012.09.004",

language = "English",

volume = "28",

pages = "183--190",

journal = "Catalysis Communications",

issn = "1566-7367",

publisher = "Elsevier",

}

TY - JOUR

T1 - Lean NO adsorption on copper catalysts supported on ceria and promoted with sodium

AU - Guerrero, Sichem

AU - Águila, Gonzalo

AU - Araya, Paulo

N1 - Funding Information: We gratefully acknowledge the Chilean National Science and Technology Research Fund (FONDECYT) , project no. 3100068 for funding this work.

PY - 2012/11/5

Y1 - 2012/11/5

N2 - The simultaneous presence of sodium and copper on novel Na/Cu/CeO 2 and Na/Cu/CeY catalysts resulted in a dramatic increase in the catalytic adsorption of NO. Copper catalyzes the oxidation of NO to NO 2, which is further adsorbed by the sodium phase. The intimate contact of both phases favors the formation of nitrates on the surface. The cooperative effect between the copper and sodium phases increases the reduction temperature of copper. It was found that the addition of copper induced a stabilizing effect on the surface area of the catalysts.

AB - The simultaneous presence of sodium and copper on novel Na/Cu/CeO 2 and Na/Cu/CeY catalysts resulted in a dramatic increase in the catalytic adsorption of NO. Copper catalyzes the oxidation of NO to NO 2, which is further adsorbed by the sodium phase. The intimate contact of both phases favors the formation of nitrates on the surface. The cooperative effect between the copper and sodium phases increases the reduction temperature of copper. It was found that the addition of copper induced a stabilizing effect on the surface area of the catalysts.

KW - CeO

KW - CeO -Y

KW - NO adsorption

KW - NO oxidation

KW - Na/Cu/CeO

KW - Na/Cu/CeO -Y

UR - http://www.scopus.com/inward/record.url?scp=84866544825&partnerID=8YFLogxK

U2 - 10.1016/j.catcom.2012.09.004

DO - 10.1016/j.catcom.2012.09.004

M3 - Article

AN - SCOPUS:84866544825

SN - 1566-7367

VL - 28

SP - 183

EP - 190

JO - Catalysis Communications

JF - Catalysis Communications

ER -

Lean NO adsorption on copper catalysts supported on ceria and promoted with sodium

Abstract

Keywords

ASJC Scopus subject areas

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