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Gold nanobipyramids doped with Au/Pd alloyed nanoclusters for high efficiency ethanol electrooxidation

Plasmonic metal nanostructures are of great interest due to their excellent physicochemical properties and promising applications in a wide range of technical fields. Among metal nanostructures, bimetallic nanostructures with desired morphologies, such as core–shell, uniform alloy and surface decora...

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Detalles Bibliográficos
Autores principales: Hanqi, Baihe, Xu, Juan, Zhu, Xingzhong, Kan, Caixia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9417086/
https://www.ncbi.nlm.nih.gov/pubmed/36132164
http://dx.doi.org/10.1039/d1na00878a
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author Hanqi, Baihe
Xu, Juan
Zhu, Xingzhong
Kan, Caixia
author_facet Hanqi, Baihe
Xu, Juan
Zhu, Xingzhong
Kan, Caixia
author_sort Hanqi, Baihe
collection PubMed
description Plasmonic metal nanostructures are of great interest due to their excellent physicochemical properties and promising applications in a wide range of technical fields. Among metal nanostructures, bimetallic nanostructures with desired morphologies, such as core–shell, uniform alloy and surface decoration, are of great interest due to their improved properties and superior synergetic effects. In this paper, Au/Pd nanoclusters were deposited on the surface of gold nanobipyramids (AuBPs) into a core–shell nanostructure (AuBP@Au(x)Pd(1−x)) through a reductive co-precipitation method. The AuBP@Au(x)Pd(1−x) nanostructure integrates effectively the advantages of plasmonic AuBPs and catalytic Pd ultrafine nanoclusters, as well as the stable Au/Pd alloy shell. The AuBP@Au(x)Pd(1−x) nanostructure exhibits superior electrocatalytic activity and durability for oxygen reduction in alkaline media owing to the synergistic effect between the AuBP core and Au/Pd shell. Furthermore, the shell thickness of AuBP@Au(x)Pd(1−x) nanostructures can be adjusted by varying the amount of precursor. Overall, the catalytic activity of bimetallic Au/Pd catalysts is likely to be governed by a complex interplay of contributions from the particle size and shape.
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spelling pubmed-94170862022-09-20 Gold nanobipyramids doped with Au/Pd alloyed nanoclusters for high efficiency ethanol electrooxidation Hanqi, Baihe Xu, Juan Zhu, Xingzhong Kan, Caixia Nanoscale Adv Chemistry Plasmonic metal nanostructures are of great interest due to their excellent physicochemical properties and promising applications in a wide range of technical fields. Among metal nanostructures, bimetallic nanostructures with desired morphologies, such as core–shell, uniform alloy and surface decoration, are of great interest due to their improved properties and superior synergetic effects. In this paper, Au/Pd nanoclusters were deposited on the surface of gold nanobipyramids (AuBPs) into a core–shell nanostructure (AuBP@Au(x)Pd(1−x)) through a reductive co-precipitation method. The AuBP@Au(x)Pd(1−x) nanostructure integrates effectively the advantages of plasmonic AuBPs and catalytic Pd ultrafine nanoclusters, as well as the stable Au/Pd alloy shell. The AuBP@Au(x)Pd(1−x) nanostructure exhibits superior electrocatalytic activity and durability for oxygen reduction in alkaline media owing to the synergistic effect between the AuBP core and Au/Pd shell. Furthermore, the shell thickness of AuBP@Au(x)Pd(1−x) nanostructures can be adjusted by varying the amount of precursor. Overall, the catalytic activity of bimetallic Au/Pd catalysts is likely to be governed by a complex interplay of contributions from the particle size and shape. RSC 2022-03-03 /pmc/articles/PMC9417086/ /pubmed/36132164 http://dx.doi.org/10.1039/d1na00878a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Hanqi, Baihe
Xu, Juan
Zhu, Xingzhong
Kan, Caixia
Gold nanobipyramids doped with Au/Pd alloyed nanoclusters for high efficiency ethanol electrooxidation
title Gold nanobipyramids doped with Au/Pd alloyed nanoclusters for high efficiency ethanol electrooxidation
title_full Gold nanobipyramids doped with Au/Pd alloyed nanoclusters for high efficiency ethanol electrooxidation
title_fullStr Gold nanobipyramids doped with Au/Pd alloyed nanoclusters for high efficiency ethanol electrooxidation
title_full_unstemmed Gold nanobipyramids doped with Au/Pd alloyed nanoclusters for high efficiency ethanol electrooxidation
title_short Gold nanobipyramids doped with Au/Pd alloyed nanoclusters for high efficiency ethanol electrooxidation
title_sort gold nanobipyramids doped with au/pd alloyed nanoclusters for high efficiency ethanol electrooxidation
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9417086/
https://www.ncbi.nlm.nih.gov/pubmed/36132164
http://dx.doi.org/10.1039/d1na00878a
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