Synthesis of skeletal silver from rapidly solidified Al–Ag precursor

Characterization and Functional Applications of Nanoporous Ag Foams Prepared by Chemical Dealloying

“…Multiple measurements were conducted and the average was taken. The present results are in good agreement with the previous report by Yamauchi et al [15] The compositions of the Ag-Al ribbons were measured by EDS for multiple times, and a typical micrograph and EDS large-area measurement for the Ag 35 Al 65 ribbons are presented in Figure 2(a). It shows that the composition of the Ag-Al ribbons is highly close to the set one, less than ±1 at.…”

“…[9][10][11] Selective removal of one or two components from a composite involving several process methods such as chemical dealloying, electrochemical dealloying, and powder sintering has become a routine technique of rapid and direct generation of nanoporous metals foams. [12][13][14][15] Many studies have reported the ways to control the ligament size of nanoporous metals, such as adding surfactants to the etching solution, controlling the applied potential of low-temperature dealloying, electrochemical dealloying, post-dealloying annealing, and adding a third element to affect the surface diffusion of the more noble element. [16][17][18] Among these methods, chemical dealloying is generally regarded as the cheapest and simplest method, which proceeds through the preferential etching of one of the constituents in a parent alloy.…”

Fabrication, microstructure and electrocatalytic property of novel nanoporous palladium composites

“…For these two systems, a suitable electrochemical potential should be applied to facilitate the dissolution of non-noble elements due to their anticorrosive feature in the common electrolytes. In comparison, dealloying phenomenon is prone to occur in Al-based precursor alloys and has been widely used for obtaining Raney catalysts [22][23][24]. In the past few years, we have successfully fabricated a series of nanoporous metals from corresponding Al-M (M = Au, Ag, Ni, Cu, Pd etc) precursors through a simple chemical dealloying strategy [25][26][27][28][29][30][31].…”

Chemical leaching of rapidly solidified Al–Si binary alloys

“…This is a principle of skeletal structure formation by chemical leaching. Several authors have been reported on the formation of non-equilibrium skeletal materials by applying chemical leaching to various rapidly solidified precursors [4][5][6][7][8][9].…”