Morphology controlled 1D Pt nanostructures synthesized by galvanic displacement of Cu nanowires in chloroplatinic acid

D. Y. Park; H. S. Jung; Y. Rheem; C. M. Hangarter; Young In Lee; J. M. Ko; Y. H. Choa; N. V. Myung

doi:10.1016/j.electacta.2010.02.054

Morphology controlled 1D Pt nanostructures synthesized by galvanic displacement of Cu nanowires in chloroplatinic acid

D. Y. Park, H. S. Jung, Y. Rheem, C. M. Hangarter, Young In Lee, J. M. Ko, Y. H. Choa, N. V. Myung

Dept. of Materials Science & Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

One-dimensional platinum (Pt) nanostructures with different shape, size, and morphology were synthesized by galvanic displacement of sacrificial Cu nanowires in chloroplatinic acid baths. By increasing the concentration of H₂PtCl₆, the morphology of Pt nanostructures greatly altered from Pt nanoparticles decorated Cu nanowires, Pt coated Cu core-shell nanowires, dense Pt nanotubes to porous Pt nanotubes. At low concentration of H₂PtCl₆ (<1 mM), the Pt content monotonically increased with an increase in [H₂PtCl₆] (upto approx. 80 at.%). The Pt content became independent of [H₂PtCl₆] at higher concentration. The average external diameter and wall thickness of Pt nanotubes decreased with increasing [H₂PtCl₆] suggesting that the dissolution of copper is strongly dependent on [Cl^-], which led to changes in the morphology of Pt nanostructures.

Original language	English
Pages (from-to)	4212-4216
Number of pages	5
Journal	Electrochimica Acta
Volume	55
Issue number	13
DOIs	https://doi.org/10.1016/j.electacta.2010.02.054
State	Published - 1 May 2010

Keywords

Electrochemical process
Electroless deposition
Galvanic displacement
Nano-materials
Platinum nanotube

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10.1016/j.electacta.2010.02.054

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title = "Morphology controlled 1D Pt nanostructures synthesized by galvanic displacement of Cu nanowires in chloroplatinic acid",

abstract = "One-dimensional platinum (Pt) nanostructures with different shape, size, and morphology were synthesized by galvanic displacement of sacrificial Cu nanowires in chloroplatinic acid baths. By increasing the concentration of H2PtCl6, the morphology of Pt nanostructures greatly altered from Pt nanoparticles decorated Cu nanowires, Pt coated Cu core-shell nanowires, dense Pt nanotubes to porous Pt nanotubes. At low concentration of H2PtCl6 (<1 mM), the Pt content monotonically increased with an increase in [H2PtCl6] (upto approx. 80 at.\%). The Pt content became independent of [H2PtCl6] at higher concentration. The average external diameter and wall thickness of Pt nanotubes decreased with increasing [H2PtCl6] suggesting that the dissolution of copper is strongly dependent on [Cl-], which led to changes in the morphology of Pt nanostructures.",

keywords = "Electrochemical process, Electroless deposition, Galvanic displacement, Nano-materials, Platinum nanotube",

author = "Park, \{D. Y.\} and Jung, \{H. S.\} and Y. Rheem and Hangarter, \{C. M.\} and Lee, \{Young In\} and Ko, \{J. M.\} and Choa, \{Y. H.\} and Myung, \{N. V.\}",

year = "2010",

month = may,

day = "1",

doi = "10.1016/j.electacta.2010.02.054",

language = "English",

volume = "55",

pages = "4212--4216",

journal = "Electrochimica Acta",

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TY - JOUR

T1 - Morphology controlled 1D Pt nanostructures synthesized by galvanic displacement of Cu nanowires in chloroplatinic acid

AU - Park, D. Y.

AU - Jung, H. S.

AU - Rheem, Y.

AU - Hangarter, C. M.

AU - Lee, Young In

AU - Ko, J. M.

AU - Choa, Y. H.

AU - Myung, N. V.

PY - 2010/5/1

Y1 - 2010/5/1

N2 - One-dimensional platinum (Pt) nanostructures with different shape, size, and morphology were synthesized by galvanic displacement of sacrificial Cu nanowires in chloroplatinic acid baths. By increasing the concentration of H2PtCl6, the morphology of Pt nanostructures greatly altered from Pt nanoparticles decorated Cu nanowires, Pt coated Cu core-shell nanowires, dense Pt nanotubes to porous Pt nanotubes. At low concentration of H2PtCl6 (<1 mM), the Pt content monotonically increased with an increase in [H2PtCl6] (upto approx. 80 at.%). The Pt content became independent of [H2PtCl6] at higher concentration. The average external diameter and wall thickness of Pt nanotubes decreased with increasing [H2PtCl6] suggesting that the dissolution of copper is strongly dependent on [Cl-], which led to changes in the morphology of Pt nanostructures.

AB - One-dimensional platinum (Pt) nanostructures with different shape, size, and morphology were synthesized by galvanic displacement of sacrificial Cu nanowires in chloroplatinic acid baths. By increasing the concentration of H2PtCl6, the morphology of Pt nanostructures greatly altered from Pt nanoparticles decorated Cu nanowires, Pt coated Cu core-shell nanowires, dense Pt nanotubes to porous Pt nanotubes. At low concentration of H2PtCl6 (<1 mM), the Pt content monotonically increased with an increase in [H2PtCl6] (upto approx. 80 at.%). The Pt content became independent of [H2PtCl6] at higher concentration. The average external diameter and wall thickness of Pt nanotubes decreased with increasing [H2PtCl6] suggesting that the dissolution of copper is strongly dependent on [Cl-], which led to changes in the morphology of Pt nanostructures.

KW - Electrochemical process

KW - Electroless deposition

KW - Galvanic displacement

KW - Nano-materials

KW - Platinum nanotube

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U2 - 10.1016/j.electacta.2010.02.054

DO - 10.1016/j.electacta.2010.02.054

M3 - Article

AN - SCOPUS:77950102566

SN - 0013-4686

VL - 55

SP - 4212

EP - 4216

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 13

ER -

Morphology controlled 1D Pt nanostructures synthesized by galvanic displacement of Cu nanowires in chloroplatinic acid

Abstract

Keywords

UN SDGs

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