Porous Au structures were synthesized starting from a crystalline Ag70Au30 alloy by selectively dissolving Ag in a nitric acid solution for selected times. The size of ligaments and pores, the degree of porosity and the specific surface area of all structures were measured. The product between the total surface area and the average ligament size is invariably equal to about 3.5 times the total volume of the solid. This suggests that the porous Au structures are similar to single gyroids. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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|Titolo:||Kinetics of nanoporous Au formation by chemical dealloying|
|Data di pubblicazione:||2014|
|Tipologia:||1.1 Articolo in rivista|