Metal foams as flow field and gas diffusion layer in direct methanol fuel cells

摘要: Metal foams are routinely used in structures to enhance stiffness and reduce weight over a range of platforms. In direct methanol fuel cells, the controlled porosity high electrical conductivity metal provide additional benefits. Performance studies were conducted with cells incorporating as flow field. The influence foam pore size density on cell performance was investigated. similar but different sizes non-monotonic due opposing trends contact CO2 removal size. contrast, for same in-plane size, improved increasing density. Because operates diffusion-dominated regime, its showed strong dependence concentration moderate rate. feasibility using gas diffusion layer (GDL) also explored.