Nanoporous metals with controlled multimodal pore size distribution.
A simple two-step dealloying strategy is described to make free-standing metal membranes with hierarchical porous architecture. This structure has a bimodal pore size distribution composed of large porosity channels and small porosity channel walls, where each pore size can be tailored independently of the others. A new gas-phase electroless plating technique was also developed here that could be used to uniformly fill porous structures with pore size as small as 10 nm.
Ding
Yi
Y
Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.
Erlebacher
Jonah
J