The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation

The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation

Abstract 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 ra...

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Autores principales: Ke Sun, Jinbo Xue, Kaiping Tai, Shen J. Dillon
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
Materias:
Medicine
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Science
Q
Acceso en línea:https://doaj.org/article/9960b64d377c47e68923d090ffc18362
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spelling oai:doaj.org-article:9960b64d377c47e68923d090ffc183622021-12-02T12:30:36ZThe Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation10.1038/s41598-017-07717-42045-2322https://doaj.org/article/9960b64d377c47e68923d090ffc183622017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07717-4https://doaj.org/toc/2045-2322Abstract 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.Ke SunJinbo XueKaiping TaiShen J. DillonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-5 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Ke Sun
Jinbo Xue
Kaiping Tai
Shen J. Dillon
The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation
description Abstract 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.
format article
author Ke Sun
Jinbo Xue
Kaiping Tai
Shen J. Dillon
author_facet Ke Sun
Jinbo Xue
Kaiping Tai
Shen J. Dillon
author_sort Ke Sun
title 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_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_sort oxygen reduction reaction rate of metallic nanoparticles during catalyzed oxidation
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/9960b64d377c47e68923d090ffc18362
work_keys_str_mv AT kesun theoxygenreductionreactionrateofmetallicnanoparticlesduringcatalyzedoxidation
AT jinboxue theoxygenreductionreactionrateofmetallicnanoparticlesduringcatalyzedoxidation
AT kaipingtai theoxygenreductionreactionrateofmetallicnanoparticlesduringcatalyzedoxidation
AT shenjdillon theoxygenreductionreactionrateofmetallicnanoparticlesduringcatalyzedoxidation
AT kesun oxygenreductionreactionrateofmetallicnanoparticlesduringcatalyzedoxidation
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