Highly active Rb/Cu/YCeO2 catalyst for the storage of nitric oxide under lean conditions

Carla Bormann; Nicole Rodríguez; Paulo Araya; Sichem Guerrero

doi:10.1016/j.catcom.2016.01.005

Highly active Rb/Cu/YCeO₂ catalyst for the storage of nitric oxide under lean conditions

Carla Bormann, Nicole Rodríguez, Paulo Araya, Sichem Guerrero^*

^*Corresponding author for this work

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

7 Scopus citations

Abstract

A novel Pt-free Rb/Cu/YCeO₂ catalyst was applied to the adsorption of NO under oxidizing conditions. The results show a much greater performance of this catalyst relative to a Pt/Ba/Al₂O₃ catalyst. The results suggest that the presence of copper promotes the oxidation of NO to NO₂, with the latter molecules being readily adsorbed. Infrared experiments show a variety of nitrate/nitrites on the catalyst surface under reaction conditions. The addition of Rb resulted in copper being more resistant to reduction. The copper phase remained highly dispersed even after the addition of Rb.

Original language	English
Pages (from-to)	76-81
Number of pages	6
Journal	Catalysis Communications
Volume	76
DOIs	https://doi.org/10.1016/j.catcom.2016.01.005
State	Published - 10 Feb 2016

Bibliographical note

Funding Information:
The Chilean National Science and Technology Research Fund, FONDECYT Regular N° 1130221 , is gratefully acknowledged for funding this work. The authors thank Professor E.E. Wolf and the Notre Dame Integrated Imaging Facility at University of Notre Dame for the HR-TEM image.

Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.

Keywords

CeO
Copper
NO adsorption
Rb/Cu/CeO
Rb/Cu/Y-CeO
Y-CeO

Access to Document

10.1016/j.catcom.2016.01.005

Cite this

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title = "Highly active Rb/Cu/YCeO2 catalyst for the storage of nitric oxide under lean conditions",

abstract = "A novel Pt-free Rb/Cu/YCeO2 catalyst was applied to the adsorption of NO under oxidizing conditions. The results show a much greater performance of this catalyst relative to a Pt/Ba/Al2O3 catalyst. The results suggest that the presence of copper promotes the oxidation of NO to NO2, with the latter molecules being readily adsorbed. Infrared experiments show a variety of nitrate/nitrites on the catalyst surface under reaction conditions. The addition of Rb resulted in copper being more resistant to reduction. The copper phase remained highly dispersed even after the addition of Rb.",

keywords = "CeO, Copper, NO adsorption, Rb/Cu/CeO, Rb/Cu/Y-CeO, Y-CeO",

author = "Carla Bormann and Nicole Rodr{\'i}guez and Paulo Araya and Sichem Guerrero",

note = "Funding Information: The Chilean National Science and Technology Research Fund, FONDECYT Regular N° 1130221 , is gratefully acknowledged for funding this work. The authors thank Professor E.E. Wolf and the Notre Dame Integrated Imaging Facility at University of Notre Dame for the HR-TEM image. Publisher Copyright: {\textcopyright} 2015 Elsevier B.V. All rights reserved.",

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AU - Bormann, Carla

AU - Rodríguez, Nicole

AU - Araya, Paulo

AU - Guerrero, Sichem

N1 - Funding Information: The Chilean National Science and Technology Research Fund, FONDECYT Regular N° 1130221 , is gratefully acknowledged for funding this work. The authors thank Professor E.E. Wolf and the Notre Dame Integrated Imaging Facility at University of Notre Dame for the HR-TEM image. Publisher Copyright: © 2015 Elsevier B.V. All rights reserved.

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N2 - A novel Pt-free Rb/Cu/YCeO2 catalyst was applied to the adsorption of NO under oxidizing conditions. The results show a much greater performance of this catalyst relative to a Pt/Ba/Al2O3 catalyst. The results suggest that the presence of copper promotes the oxidation of NO to NO2, with the latter molecules being readily adsorbed. Infrared experiments show a variety of nitrate/nitrites on the catalyst surface under reaction conditions. The addition of Rb resulted in copper being more resistant to reduction. The copper phase remained highly dispersed even after the addition of Rb.

AB - A novel Pt-free Rb/Cu/YCeO2 catalyst was applied to the adsorption of NO under oxidizing conditions. The results show a much greater performance of this catalyst relative to a Pt/Ba/Al2O3 catalyst. The results suggest that the presence of copper promotes the oxidation of NO to NO2, with the latter molecules being readily adsorbed. Infrared experiments show a variety of nitrate/nitrites on the catalyst surface under reaction conditions. The addition of Rb resulted in copper being more resistant to reduction. The copper phase remained highly dispersed even after the addition of Rb.

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