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Peapod Assemblies of Au and Au/Pt Nanoparticles Encapsulated within Hollow Silica Nanotubes
Author(s) -
Byoun Wongyun,
Yoo Hyojong
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201700379
Subject(s) - materials science , nanoparticle , polyvinylpyrrolidone , nanodot , nanotechnology , nanowire , aqueous solution , microemulsion , nanoshell , chemical engineering , polymer chemistry , chemistry , organic chemistry , pulmonary surfactant , engineering
Nanoparticle assemblies within hollow nanoshells represent versatile structures which enable efficient nanosystems with colligative properties of nanoparticles for a variety of applications. In this report, we present a simple and high yielding solution‐based synthetic strategy for peapod‐shaped Au nanoparticle assembly encapsulated within hollow silica nanotubes ( pp multi‐Au@SiO 2 NTs). One‐dimensional, [multiple Au nanodot] core–[silica] shell nanowires (multi‐Au@SiO 2 NWs) are preferentially synthesized based on reverse microemulsion (water‐in‐oil) techniques. By thermal treatment of multi‐Au@SiO 2 NWs in aqueous polyvinylpyrrolidone (PVP) solution, pp multi‐Au@SiO 2 NTs can be successfully fabricated. Further growth of Pt on the Au nanoparticles in pp multi‐Au@SiO 2 NTs can lead to the generation of [Au] core‐[Pt] shell (Au/Pt) nanoparticle assembly surrounded by silica nanotubes ( pp multi‐Au/Pt@SiO 2 NTs).