FUEL CELLS AND THEIR COMPONENTS USING CATALYSTS HAVING A HIGH METAL TO SUPPORT RATIO

摘要

The present invention relates to coated substrates comprising electrocatalysts containing at least about 70 weight percent of a metal. The present invention also relates to fuel cell stacks and single cells, including direct methanol fuels cells, hydrogen fuel cells, and reformed hydrogen fuel cells comprising the coated substrate comprising electrocatalysts containing at least about 70 weight percent of a metal.