A detailed insight into the catalytic reduction of NO operated by Cr–Cu nanostructures embedded in a CeO2 surface

Literature Information

Publication Date 2018-08-08
DOI 10.1039/C8CP04314K
Impact Factor 3.676
Authors

Mauro Boero, Kazuki Tamai


View Original

Abstract

Replacing rare and expensive elements, such as Pt, Pd, and Rh, commonly used in catalytic devices with more abundant and less expensive ones is mandatory to realize efficient, sustainable and economically appealing three-way catalysts. In this context, the surface of a Cr–Cu/CeO2 system represents a versatile catalyst for the conversion of toxic NO into harmless N2. Yet, a clear picture of the underlying mechanism is still missing. We provide here a detailed insight into such a reaction mechanism by means of a combined experimental and theoretical study. Fourier-transform infrared spectroscopy is used to detect all the products resulting from catalytic reactions of NO and CO on the surface of a Cr–Cu/CeO2 nanocatalyst. CO pulsing experiments unveil that reactions of CO with O atoms at the Cr–Cu/CeO2 surface are the major factors responsible for the formation of surface vacancies. On these grounds, a comprehensive picture of the NO reduction and the role of both Cu and Cr dopants and vacancies is rationalized by first-principles modeling. Our findings provide a general route for the realization of ceria-based cost-effective catalysts.

Related Literature

O–H bond activation of β,γ-unsaturated oximes via hydrogen atom transfer (HAT) and photoredox dual catalysis

Chen Zhu, Xiangyu Chen, Huifeng Yue, Tengfei Ji, Yiqiao Ma, Yuanyuan Cao, Rajesh Kancherla, Magnus Rueping

2023-11-30 Edge Article

DOI: 10.1039/D3SC04410F

Inserting an “atomic trap” for directional dopant migration in core/multi-shell quantum dots

Chun Chu, Elan Hofman, Chengpeng Gao, Shuya Li, Hanjie Lin, Walker MacSwain, John M. Franck, Robert W. Meulenberg, Arindam Chakraborty, Weiwei Zheng

2023-11-20 Edge Article

DOI: 10.1039/D3SC04165D

Thermally activated delayed fluorescence in a mechanically soft charge-transfer complex: role of the locally excited state

Kalyan Jyoti Kalita, Saikat Mondal, C. Malla Reddy, Ratheesh K. Vijayaraghavan

2023-11-10 Edge Article

DOI: 10.1039/D3SC03267A

Rapid, iterative syntheses of unsymmetrical di- and triarylboranes from crystalline aryldifluoroboranes

Douglas Turnbull, Marc-André Légaré

2023-11-17 Edge Article

DOI: 10.1039/D3SC05071H

Thermally activated delayed fluorescence in a deep red dinuclear iridium(iii) complex: a hidden mechanism for short luminescence lifetimes

Andrey V. Zaytsev, Amit Sil, Glib V. Baryshnikov, J. A. Gareth Williams, Fernando B. Dias, Valery N. Kozhevnikov

2023-11-14 Edge Article

DOI: 10.1039/D3SC04450E

A copper(ii) peptide helicate selectively cleaves DNA replication foci in mammalian cells

Ana Alcalde-Ordóñez, Natalia Barreiro-Piñeiro, Bríonna McGorman, Jacobo Gómez-González, David Bouzada, Francisco Rivadulla, M. Eugenio Vázquez, Andrew Kellett, José Martínez-Costas, Miguel Vázquez López

2023-10-27 Edge Article

DOI: 10.1039/D3SC03303A

Machine learning for analysis of experimental scattering and spectroscopy data in materials chemistry

Andy S. Anker, Keith T. Butler, Kirsten M. Ø. Jensen

2023-11-22 Perspective

DOI: 10.1039/D3SC05081E

Dipyrrolonaphthyridinedione – (still) a mysterious cross-conjugated chromophore

Bartłomiej Sadowski, Daniel T. Gryko

2023-11-10 Perspective

DOI: 10.1039/D3SC05272A

An orbitally adapted push–pull template for N2 activation and reduction to diazene-diide

David Specklin, Marie-Christine Boegli, Anaïs Coffinet, Léon Escomel, Laure Vendier, Mary Grellier, Antoine Simonneau

2023-11-21 Edge Article

DOI: 10.1039/D3SC04390H

You might also like

Compound Q&A

What precautions should be taken when handling 4-(2-Furylmethyl)thiomorpholine 1,1-dioxide (CAS: 79206-94-3)?

When handling 4-(2-Furylmethyl)thiomorpholine 1,1-dioxide (CAS: 79206-94-3), it ...

79206-94-34-(2-Furylmethyl)thi...
Compound Q&A

What precautions should be taken when handling 4-Chloro-N-[2-(4-morpholinyl)ethyl]benzamide (CAS: 71320-77-9)?

When handling 4-Chloro-N-[2-(4-morpholinyl)ethyl]benzamide (CAS: 71320-77-9), it...

71320-77-94-Chloro-N-[2-(4-mor...
Compound Q&A

How should waste containing 2-[2-(2-Methoxyethoxy)ethoxy]ethyl 4-methylbenzenesulfonate (CAS: 62921-74-8) be handled?

Waste containing this compound (CAS: 62921-74-8) should be handled according to ...

62921-74-82-[2-(2-Methoxyethox...
Compound Q&A

How should waste containing (S)-Methyl 2-amino-3-cyclohexylpropanoate be handled?

Waste containing (S)-Methyl 2-amino-3-cyclohexylpropanoate should be collected i...

40056-18-6(S)-Methyl 2-amino-3...
166882-70-85-({4-[(2S,4R)-4-Hyd...
Compound Q&A

Are there alternatives to (2E)-3-(3,4-Dichlorophenyl)acrylic acid (CAS: 7312-27-8) in synthesis?

There are several alternatives to (2E)-3-(3,4-Dichlorophenyl)acrylic acid in syn...

7312-27-8(2E)-3-(3,4-Dichloro...
Compound Q&A

How should Ethyl 6-(2-nitrophenyl)imidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 925437-84-9) be stored?

Ethyl 6-(2-nitrophenyl)imidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 925437-84...

925437-84-9Ethyl 6-(2-nitrophen...
Compound Q&A

How should waste containing 2-(1,3-Thiazol-2-yl)ethanamine (CAS: 18453-07-1) be handled?

Waste containing 2-(1,3-Thiazol-2-yl)ethanamine (CAS: 18453-07-1) should be coll...

18453-07-12-(1,3-Thiazol-2-yl)...
Compound Q&A

How is Methyl 5-iodo-2-methylbenzoate (CAS: 103440-54-6) typically synthesized?

Methyl 5-iodo-2-methylbenzoate can be synthesized through the iodination of meth...

103440-54-6Methyl 5-iodo-2-meth...
Compound Q&A

How is 5-Chloro[1,2,4]triazolo[1,5-a]pyridine (CAS: 1427399-34-5) typically synthesized?

5-Chloro[1,2,4]triazolo[1,5-a]pyridine is commonly synthesized via the condensat...

1427399-34-55-Chloro[1,2,4]triaz...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.