High Surface Area Metal Electrode

摘要

Electrodes are one essential component in electrochemical conversion devices used for energy storage and generation. In this presentation, micro- and nano-engineered electrodes made of metallic backbones will be introduced. The electrode comprising a thin porous metal sheet of pore sizes at micrometer and sub-micrometer level, provides about an order of magnitude higher surface area density than conventional metal foams, meshes, and dense foils. Furthermore, catalytic materials such as carbon nanotubes can be grown inside the pore of the metal sheet to further increase the electron/reactant contact area. The new electrode materials have potential for applications to alkaline water electrolysis, alkaline fuel cells, battery, and ultra-capacitor.