The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation

This work reports the oxygen reduction reaction (ORR) kinetics of metal nanoparticle catalysts between 500 and 600 °C at low oxygen partial pressures. Ex situ and in situ TEM measurements demonstrate catalyzed nanowire growth initially follows linear kinetics; characteristic of being ORR rate limite...

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Detalles Bibliográficos
Autores principales: Sun, Ke, Xue, Jinbo, Tai, Kaiping, Dillon, Shen J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5539166/
https://www.ncbi.nlm.nih.gov/pubmed/28765620
http://dx.doi.org/10.1038/s41598-017-07717-4
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author Sun, Ke
Xue, Jinbo
Tai, Kaiping
Dillon, Shen J.
author_facet Sun, Ke
Xue, Jinbo
Tai, Kaiping
Dillon, Shen J.
author_sort Sun, Ke
collection PubMed
description This work reports the oxygen reduction reaction (ORR) kinetics of metal nanoparticle catalysts between 500 and 600 °C at low oxygen partial pressures. Ex situ and in situ TEM measurements demonstrate catalyzed nanowire growth initially follows linear kinetics; characteristic of being ORR rate limited. The ORR rates of Ag, Au, Cu, Ni, Pd, Rh and Pt measured at 600 °C form a volcano plot versus relative oxidation potential. Cu nanoparticles produce the maximum ORR rate under these conditions.
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spelling pubmed-55391662017-08-07 The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation Sun, Ke Xue, Jinbo Tai, Kaiping Dillon, Shen J. Sci Rep Article This work reports the oxygen reduction reaction (ORR) kinetics of metal nanoparticle catalysts between 500 and 600 °C at low oxygen partial pressures. Ex situ and in situ TEM measurements demonstrate catalyzed nanowire growth initially follows linear kinetics; characteristic of being ORR rate limited. The ORR rates of Ag, Au, Cu, Ni, Pd, Rh and Pt measured at 600 °C form a volcano plot versus relative oxidation potential. Cu nanoparticles produce the maximum ORR rate under these conditions. Nature Publishing Group UK 2017-08-01 /pmc/articles/PMC5539166/ /pubmed/28765620 http://dx.doi.org/10.1038/s41598-017-07717-4 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Sun, Ke
Xue, Jinbo
Tai, Kaiping
Dillon, Shen J.
The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation
title The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation
title_full The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation
title_fullStr The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation
title_full_unstemmed The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation
title_short The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation
title_sort oxygen reduction reaction rate of metallic nanoparticles during catalyzed oxidation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5539166/
https://www.ncbi.nlm.nih.gov/pubmed/28765620
http://dx.doi.org/10.1038/s41598-017-07717-4
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