The electro-oxidation of lactic acid at platinum microparticles and polycrystalline platinum electrode
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We report the electrochemical modification of boron-doped diamond electrode surface with electrodeposited platinum microparticles of mean size of 193 nm ± 107 nm. The activity of platinum microparticle modified boron-doped diamond (ca. 20 % platinum coverage) and platinum macro electrodes (100% platinum coverage) are measured and compared through lactic acid oxidation, selected because of the surface sensitive nature of the reaction. Significant differences are found with the modified BDD showing a markedly lower current density.
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Boron-doped diamond, Lactic acid oxidation, Modified electrodes, Platinum microparticles, Polycrystalline platinum
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International Journal of Electrochemical Science, v. 11, n. 3, p. 2166-2176, 2016.
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