|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||Fabrication of Monolithic Nanoporous Copper by Chemical Dealloying Cu-Y Metallic Glasses
||Ning Wang, Ye Pan
|On-Site Speaker (Planned)
Nanoporous copper (NPC) with tunable ligaments was synthesized by dealloying new Cu-Y binary amorphous ribbons in H2SO4 aqueous solution. The influence of the dealloying conditions on the morphologies of NPC was evaluated comprehensively to reveal the coarsen behaviors of Cu ligaments. It was found that the evolution behavior of the ligament size can be well described by a diffusion based growth kinetic model. The ligaments can be significantly coarsened with prolongation of leaching time or elevation of leaching temperature. The results provide meaningful insight to synthesize NPC with more suitable ligaments. In addition, NPC with different microstructures produced by dealloying amorphous precursors with different compositions (Cu72Y28 and Cu58Y42) were applied in the sono-catalytic degradation for methyl orange (MO) dye. They displayed distinct catalytic activities but are all higher than that of commercial copper foil. The sono-Fenton-like process of NPC with desired microstructure has shown great potential in treating dye wastewater.
||Planned: None Selected