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The electrochemical properties of bismuth and germanium irreversibly adsorbed on platinum electrodes have been used to screen the surface domains of polycrystalline electrodes. As revealed by the use of stepped surfaces, bismuth adsorbed on (111) terrace sites shows a redox peak at 0.63V, whose charge is proportional to the number of (111) terrace sites, without any interference from bismuth adsorbed...
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