Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts
AuthorMa, A; Xu, J; Zhang, X; Zhang, B; Wang, D; Xu, H
Source TitleScientific Reports
PublisherNATURE PUBLISHING GROUP
University of Melbourne Author/sZhang, Xuehua
Document TypeJournal Article
CitationsMa, A., Xu, J., Zhang, X., Zhang, B., Wang, D. & Xu, H. (2014). Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts. SCIENTIFIC REPORTS, 4 (1), https://doi.org/10.1038/srep04849.
Access StatusOpen Access
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.
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