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Surfactant-free sub-2 nm ultrathin triangular gold nanoframes

Lookup NU author(s): Dr Stevin Pramana

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Abstract

Ultrathin triangular gold nanoframes are synthesized in high yield through selective gold deposition on the edges of triangular silver nanoprisms and subsequent silver etching with mild wet etchants. These ultrathin gold nanoframes are surfactant-free with tailorable ridge thickness from 1.8 to 6 nm and exhibit adjustable and distinct surface plasmon resonance bands in the visible and near-IR region. In comparison, etching of the nanoprism template by galvanic replacement can only create frame structures with much thicker ridges, which have much lower catalytic activity for 4-nitrophenol reduction than the ultrathin gold nanoframes. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Publication metadata

Author(s): Shahjamali MM, Bosman M, Cao S, Huang X, Cao X, Zhang H, Pramana SS, Xue C

Publication type: Article

Publication status: Published

Journal: Small

Year: 2013

Volume: 9

Issue: 17

Pages: 2880-2886

Print publication date: 09/09/2013

Online publication date: 28/02/2013

ISSN (print): 1613-6810

ISSN (electronic): 1613-6829

Publisher: Wiley - VCH Verlag GmbH & Co. KGaA

URL: https://doi.org/10.1002/smll.201300200

DOI: 10.1002/smll.201300200


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