Silver-rich clusters in nanoporous gold

Tobias Krekeler; Anastasia V. Straßer; Matthias Graf; Ke Wang; Christian Hartig; Martin Ritter; Jörg Weissmüller

doi:10.1080/21663831.2016.1276485

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Silver-rich clusters in nanoporous gold

Original Report | 更新时间：2026-08-19

- Silver-rich clusters in nanoporous gold
- Materials Research Letters Vol. 5, Issue 5, Pages: 314-321(2017)
- 作者机构：
  
  1. Electron Microscopy Unit Hamburg University of Technology
  2. Institute of Materials Physics and Technology Hamburg University of Technology
  3. Institute of Materials Physics and Technology Hamburg University of Technology Hamburg Germany
  4. Institute of Materials Research Materials Mechanics Helmholtz-Zentrum Geesthacht
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2016.1276485
  CLC：
- Online First：17 January 2017，
  
  Published：2017
- 稿件说明：
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Tobias Krekeler, Anastasia V. Straßer, Matthias Graf, et al. Silver-rich clusters in nanoporous gold[J]. Materials Research Letters, 2017, 5(5): 314-321.
DOI：

Tobias Krekeler, Anastasia V. Straßer, Matthias Graf, et al. Silver-rich clusters in nanoporous gold[J]. Materials Research Letters, 2017, 5(5): 314-321. DOI： 10.1080/21663831.2016.1276485.

摘要

Abstract

BSTRACTHigh-resolution elemental mapping in a transmission electron microscope shows that the residual silver in dealloying-made nanoporous gold (NPG) is aggregated in nanoscale clusters. Kinetic Monte Carlo simulation confirms that these regions are buried relics of the master alloy that have never been exposed to corrosion. The surface of as-dealloyed NPG is covered by at least one atomic monolayer of nearly pure gold. The preferential location of silver in the bulk is relevant when interfaces control the material's function

as in catalysis and sensing. Annealing in air homogenizes the alloy by surface diffusion.

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Related Institution

c Institute of Applied and Physical Chemistry University Bremen

b MAPEX Center for Materials and Processes University of Bremen Bremen Germany

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a Institute of Solid State Physics University of Bremen Bremen Germany

Helmholtz-Zentrum Geesthacht Institut für Werkstoffforschung Werkstoffmechanik

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