Why is the platinum/rhodium catalyst in automobile catalytic converters dispersed on the surface of a ceramic rather than used as thin metal foil?

Question

Vocaloid · Answer

Please do not comment unless you are making a serious attempt at a solution.

Gdeinward · Answer

Is this a personal question, or work/school-related?

Gdeinward · Answer

As far as I know, ceramic is utilized simply because of the pure expense of Platinum metals.

Gdeinward · Answer

Ceramic is porous, making it an effective surface and structure to apply the catalyst while still allowing flow,

Gdeinward · Answer

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Vocaloid · Answer

thank you

Gdeinward · Answer

Your welcome, it was my pleasure.