Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts

Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts

Interfacial nanodroplets were grafted to the surfaces of self-sacrificed template particles in a galvanic reaction system to assist the construction of 3D Au porous structures. The interfacial nanodroplets were formed via direct adsorption of surfactant-free emulsions onto the particle surfaces. The...

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Main Authors: Ma, Aijing, Xu, Jie, Zhang, Xuehua, Zhang, Bin, Wang, Dayang, Xu, Haolan
Format: Online
Language:English
Published: Nature Publishing Group 2014
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4010925/
id pubmed-4010925
recordtype oai_dc
spelling pubmed-40109252014-05-06 Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts Ma, Aijing Xu, Jie Zhang, Xuehua Zhang, Bin Wang, Dayang Xu, Haolan Article Interfacial nanodroplets were grafted to the surfaces of self-sacrificed template particles in a galvanic reaction system to assist the construction of 3D Au porous structures. The interfacial nanodroplets were formed via direct adsorption of surfactant-free emulsions onto the particle surfaces. The interfacial nanodroplets discretely distributed at the template particle surfaces and served as soft templates to guide the formation of porous Au structures. The self-variation of footprint sizes of interfacial nanodroplets during Au growth gave rise to a hierarchical pore size distribution of the obtained Au porous particles. This strategy could be easily extended to synthesize bimetal porous particles such as Au-Pt and Au-Pd. The obtained porous Au, Au-Pt, and Au-Pd particles showed excellent catalytic activity in catalytic reduction of 4-nitrophenol. Nature Publishing Group 2014-05-06 /pmc/articles/PMC4010925/ /pubmed/24797697 http://dx.doi.org/10.1038/srep04849 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. The images in this article are included in the article's Creative Commons license, unless indicated otherwise in the image credit; if the image is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the image. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Ma, Aijing
Xu, Jie
Zhang, Xuehua
Zhang, Bin
Wang, Dayang
Xu, Haolan
spellingShingle Ma, Aijing
Xu, Jie
Zhang, Xuehua
Zhang, Bin
Wang, Dayang
Xu, Haolan
Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts
author_facet Ma, Aijing
Xu, Jie
Zhang, Xuehua
Zhang, Bin
Wang, Dayang
Xu, Haolan
author_sort Ma, Aijing
title Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts
title_short Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts
title_full Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts
title_fullStr Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts
title_full_unstemmed Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts
title_sort interfacial nanodroplets guided construction of hierarchical au, au-pt, and au-pd particles as excellent catalysts
description Interfacial nanodroplets were grafted to the surfaces of self-sacrificed template particles in a galvanic reaction system to assist the construction of 3D Au porous structures. The interfacial nanodroplets were formed via direct adsorption of surfactant-free emulsions onto the particle surfaces. The interfacial nanodroplets discretely distributed at the template particle surfaces and served as soft templates to guide the formation of porous Au structures. The self-variation of footprint sizes of interfacial nanodroplets during Au growth gave rise to a hierarchical pore size distribution of the obtained Au porous particles. This strategy could be easily extended to synthesize bimetal porous particles such as Au-Pt and Au-Pd. The obtained porous Au, Au-Pt, and Au-Pd particles showed excellent catalytic activity in catalytic reduction of 4-nitrophenol.
publisher Nature Publishing Group
publishDate 2014
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4010925/
_version_ 1612085624198660096

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