What materials are needed for a hydrogen fuel cell?

Question

What materials are needed for a hydrogen fuel cell?

Answer 1

An inner porous doped-lanthanum manganite tube having an open end and a closed end,

A thin gas-tight yttria-stabilized zirconia electrolyte covers the air electrode except for a relatively thin strip of an interconnection surface, which is a dense gas-tight layer of doped-lanthanum chromite.

A porous nickel-zirconia cermet layer, which is the anode or fuel electrode.

Unfortunately, there is not enough of these rare-elements in the world to convert all vehicles to use them, so BP are researching like mad to find alternatives to patent for their own continuing profit.

Answer 2

lots of materials! i just made one last week!!!!!!!!!!