| Summary: | In the present work, nanoporous Ag (np Ag) ribbons are prepared by chemical etching Cu60-xAg40Lax (x = 0, 3, 6 at.%) precursor alloys. The effects of precursor crystal structure on the morphology and mechanical properties of nanoporous Ag (np Ag) ribbons are investigated. The addition of La element inhibits the nucleation and growth of the crystal phases, then controls the phase compositions of the Cu-Ag-(La) precursors. The corroded np Ag with various ligament connectivity and homogeneity exhibits the different mechanical properties. Current study provides a general strategy for strengthening the np Ag metals by increasing the ligament connectivity and uniformity of the nanoporous metals.
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