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In industry, numerous companies state that they use platinum electrodes for the purpose of electrolysis. My question is: are these electrodes pure platinum or could they also be, for example, another element/ compound coated in platinum such as platinum coated titanium mesh?

If they are about 100% platinum, why not use platinum coated titanium mesh in industry?

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In most cases, as you mentioned, platinum coated titanium meshes are used (or sheets). I am not aware of any application where pure platinum electrodes are demanded (for electrolysis).

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