MULTIPLE LAYER ELECTRODE FOR IMPROVED PERFORMANCE

摘要

In an electrochemical device, such as a fuel cell or electrocatalytic oxidation cell, a catalyst electrode is comprised of a catalytic structure having multiple layers of varied densities to enhance gas diffusion throughout the electrode. A first catalyst alyer has a first density, and a second catalyst has a second density that is about 33 to 50 % of the first density and any additional layers having a density which are less than the previous layer. A gas diffusion layer is adjacent the second catalyst layer.