A multi-step dealloying method to produce nanoporous gold with no volume change and minimal cracking

Ye Sun; T. John Balk

doi:10.1016/j.scriptamat.2007.12.008

A multi-step dealloying method to produce nanoporous gold with no volume change and minimal cracking

Ye Sun
, T. John Balk

Producción científica: Article › revisión exhaustiva

106 Citas (Scopus)

Resumen

We report a simple two-step dealloying method for producing bulk nanoporous gold with no volume change and no significant cracking. The galvanostatic dealloying method used here appears superior to potentiostatic methods for fabricating millimeter-scale samples. Care must be taken when imaging the nanoscale, interconnected sponge-like structure with a focused ion beam, as even brief exposure caused immediate and extensive cracking of nanoporous gold, as well as ligament coarsening at the surface.

Idioma original	English
Páginas (desde-hasta)	727-730
Número de páginas	4
Publicación	Scripta Materialia
Volumen	58
N.º	9
DOI	https://doi.org/10.1016/j.scriptamat.2007.12.008
Estado	Published - may 2008

Nota bibliográfica

Funding Information:
Acknowledgment is made to the Donors of the American Chemical Society Petroleum Research Fund, for support of this research. The authors acknowledge support of the National Center for Electron Microscopy, Lawrence Berkeley Laboratory, which is supported by the US Department of Energy under Contract No. DE-AC02-05CH11231.

Financiación

Acknowledgment is made to the Donors of the American Chemical Society Petroleum Research Fund, for support of this research. The authors acknowledge support of the National Center for Electron Microscopy, Lawrence Berkeley Laboratory, which is supported by the US Department of Energy under Contract No. DE-AC02-05CH11231.

Financiadores	Número del financiador
Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory	DE-AC02-05CH11231
American Chemical Society Petroleum Research Fund

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2007.12.008

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title = "A multi-step dealloying method to produce nanoporous gold with no volume change and minimal cracking",

abstract = "We report a simple two-step dealloying method for producing bulk nanoporous gold with no volume change and no significant cracking. The galvanostatic dealloying method used here appears superior to potentiostatic methods for fabricating millimeter-scale samples. Care must be taken when imaging the nanoscale, interconnected sponge-like structure with a focused ion beam, as even brief exposure caused immediate and extensive cracking of nanoporous gold, as well as ligament coarsening at the surface.",

keywords = "Dealloy, Gold, Grain boundaries, Nanoporous, Porous materials",

author = "Ye Sun and Balk, \{T. John\}",

note = "Funding Information: Acknowledgment is made to the Donors of the American Chemical Society Petroleum Research Fund, for support of this research. The authors acknowledge support of the National Center for Electron Microscopy, Lawrence Berkeley Laboratory, which is supported by the US Department of Energy under Contract No. DE-AC02-05CH11231.",

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AU - Sun, Ye

AU - Balk, T. John

N1 - Funding Information: Acknowledgment is made to the Donors of the American Chemical Society Petroleum Research Fund, for support of this research. The authors acknowledge support of the National Center for Electron Microscopy, Lawrence Berkeley Laboratory, which is supported by the US Department of Energy under Contract No. DE-AC02-05CH11231.

PY - 2008/5

Y1 - 2008/5

N2 - We report a simple two-step dealloying method for producing bulk nanoporous gold with no volume change and no significant cracking. The galvanostatic dealloying method used here appears superior to potentiostatic methods for fabricating millimeter-scale samples. Care must be taken when imaging the nanoscale, interconnected sponge-like structure with a focused ion beam, as even brief exposure caused immediate and extensive cracking of nanoporous gold, as well as ligament coarsening at the surface.

AB - We report a simple two-step dealloying method for producing bulk nanoporous gold with no volume change and no significant cracking. The galvanostatic dealloying method used here appears superior to potentiostatic methods for fabricating millimeter-scale samples. Care must be taken when imaging the nanoscale, interconnected sponge-like structure with a focused ion beam, as even brief exposure caused immediate and extensive cracking of nanoporous gold, as well as ligament coarsening at the surface.

KW - Dealloy

KW - Gold

KW - Grain boundaries

KW - Nanoporous

KW - Porous materials

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VL - 58

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JO - Scripta Materialia

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A multi-step dealloying method to produce nanoporous gold with no volume change and minimal cracking

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

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