Show simple item record

dc.contributor.authorRehn, SMen
dc.contributor.authorRinge, Emilieen
dc.date.accessioned2018-08-03T13:15:47Z
dc.date.available2018-08-03T13:15:47Z
dc.date.issued2018-05-01en
dc.identifier.issn0934-0866
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/278631
dc.description.abstractThe galvanic replacement reaction is a robust tool for the controlled synthesis of hollow and semihollow bimetallic nanostructures, which have applications in a range of science, engineering, and medical fields due to the tunability of their localized surface plasmon resonances (LSPRs) and surface chemistry. Here, a controllable galvanic replacement of Ag by Au coupled with coreduction is described, performed in nonaqueous solvents including methanol, ethanol, and an N,N-dimethylformamide:toluene mixture and yielding hollow and semihollow alloyed nanoparticles. Structural control, from semihollow to nanoshell, and plasmon tunability are demonstrated via control of the Au:Ag stoichiometry. The high structural dependence on temperature is shown, with striking changes in nanoparticle surface smoothness and pinhole density, and reveals the optimal reaction temperature to be 65 °C in alcohols. Through optimizing this reaction, smooth closed shell AgAu alloy nanoparticles with LSPRs tunable from 494 to 567 nm are obtained. This work provides a framework for galvanic replacement of large anisotropic Ag nanoparticles with Au in nonaqueous media, which can be extended to other solvent systems suitable for air-sensitive metals and precursors.
dc.titleControllably Hollow AgAu Nanoparticles via Nonaqueous, Reduction Agent-Assisted Galvanic Replacementen
dc.typeArticle
prism.issueIdentifier5en
prism.publicationDate2018en
prism.publicationNameParticle and Particle Systems Characterizationen
prism.volume35en
dc.identifier.doi10.17863/CAM.25973
dcterms.dateAccepted2018-01-22en
rioxxterms.versionofrecord10.1002/ppsc.201700381en
rioxxterms.versionAM*
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2018-05-01en
dc.contributor.orcidRehn, SM [0000-0001-7640-4528]
dc.contributor.orcidRinge, Emilie [0000-0003-3743-9204]
dc.identifier.eissn1521-4117
rioxxterms.typeJournal Article/Reviewen
rioxxterms.freetoread.startdate2019-01-22


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record