10.1021/acsami.7b04659.s001 Chonghang Zhao Chonghang Zhao Takeshi Wada Takeshi Wada Vincent De Andrade Vincent De Andrade Garth J. Williams Garth J. Williams Jeff Gelb Jeff Gelb Li Li Li Li Juergen Thieme Juergen Thieme Hidemi Kato Hidemi Kato Yu-chen Karen Chen-Wiegart Yu-chen Karen Chen-Wiegart Three-Dimensional Morphological and Chemical Evolution of Nanoporous Stainless Steel by Liquid Metal Dealloying American Chemical Society 2017 metal dealloying processes surface area pore size Chemical Evolution 3 D parameters Nanoporous Stainless Steel dealloying front 3 D morphology X-ray nanotomography densification mechanisms X-ray fluorescence microscopy Liquid Metal Dealloying Nanoporous materials metal dealloying dealloying methods material cost bicontinuous structure Three-Dimensional Morphological 2017-09-04 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Three-Dimensional_Morphological_and_Chemical_Evolution_of_Nanoporous_Stainless_Steel_by_Liquid_Metal_Dealloying/5418934 Nanoporous materials, especially those fabricated by liquid metal dealloying processes, possess great potential in a wide range of applications due to their high surface area, bicontinuous structure with both open pores for transport and solid phase for conductivity or support, and low material cost. Here, we used X-ray nanotomography and X-ray fluorescence microscopy to reveal the three-dimensional (3D) morphology and elemental distribution within materials. Focusing on nanoporous stainless steel, we evaluated the 3D morphology of the dealloying front and established a quantitative processing–structure–property relationship at a later stage of dealloying. The morphological differences of samples created by liquid metal dealloying and aqueous dealloying methods were also discussed. We concluded that it is particularly important to consider the dealloying, coarsening, and densification mechanisms in influencing the performance-determining, critical 3D parameters, such as tortuosity, pore size, porosity, curvature, and interfacial shape.