title: Interfacial nanodroplets guided construction of hierarchical Au, Au-Pt, and Au-Pd particles as excellent catalysts.
abstract: 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.
authors.affiliation: Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia.
authors.forename: Aijing
authors.initials: A
authors.lastname: Ma
authors.affiliation: Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia.
authors.forename: Jie
authors.initials: J
authors.lastname: Xu
authors.affiliation: 1] Department of Chemical and Biomolecular Engineering, University of Melbourne, Parkville VIC 3010, Australia [2] School of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia.
authors.forename: Xuehua
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Chemistry, Tianjin University, Tianjin, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Zhang
authors.affiliation: Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia.
authors.forename: Dayang
authors.initials: D
authors.lastname: Wang
authors.affiliation: Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia.
authors.forename: Haolan
authors.initials: H
authors.lastname: Xu