Three-dimensional morphology of nanoporous gold

Takeshi Fujita, Li Hua Qian, Koji Inoke, Jonah Erlebacher, Ming Wei Chen

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183 Citations (Scopus)

Abstract

We report transmission electron tomography of nanoporous gold fabricated by chemically dealloying Au35 Ag65 films. A number of algorithms were employed to quantitatively characterize the complex three-dimensional nanoporous structure. It was found that gold ligaments and nanopore channels are topologically and morphologically equivalent, i.e., they are inverses of each other in three-dimensional space. Statistical analysis reveals that this bicontinuous nanostructured material is actually quasiperiodic and has, on average, a near zero surface curvature. These quantitative measurements will help in understanding the structural stability of nanoporous gold and in modeling its physical and chemical performances.

Original languageEnglish
Article number251902
JournalApplied Physics Letters
Volume92
Issue number25
DOIs
Publication statusPublished - 2008 Jul 4

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Fujita, T., Qian, L. H., Inoke, K., Erlebacher, J., & Chen, M. W. (2008). Three-dimensional morphology of nanoporous gold. Applied Physics Letters, 92(25), [251902]. https://doi.org/10.1063/1.2948902