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Hard drive hydrogen fuel cell? Answered

I have just learnt that hard drive platters are coated in platinum, i know platinum is a catalyst in the reaction between hydrogen and oxygen to for water and produces electricity. This is basically what happens in i hydrogen fuel cell. Has anyone tried using these platters in making a fuel cell and if so how successful was it? Does anyone know if the platinum quantity high enough for this to be viable? I would like to here any ideas on this quite interesting project.

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KitemanBest Answer (author)2013-11-18

Platinum electrodes are usually pure platinum. Hard drive platters contain only about 2 microgrammes of platinum, in an alloy, so I doubt they will work in a fuel cell.

They might work well as electrolysis electrodes, though.

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benmurton (author)Kiteman2013-11-18

do you know if the platinum is plated on the surface or right the way through? If it is plated then it may have more luck working. I have a whole lot of these platters so i will make a cell and run my hydrogen generator through it. Any more ideas are welcome.

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Kiteman (author)benmurton2013-11-19

On the surface.

Googling reveals the layer to be around 30nm thick.

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