Adsorption of L(+)-ascorbic acid on a mercury electrode in acid solution
作者： Ma.M. Gómez , E. Diez , E. Alda , A. Aldaz
DOI: 10.1016/S0022-0728(84)80098-4
关键词: Gibbs free energy 、 Electrocapillarity 、 Aqueous solution 、 Inorganic chemistry 、 Ascorbic acid 、 Chemistry 、 Gibbs isotherm 、 Adsorption 、 Surface charge 、 Dropping mercury electrode
摘要: Abstract The adsorption of L(+)-ascorbic acid on mercury in aqueous solutions 10−2 M HClO4 has been determined from electrocapillary and capacity measurements. maximum occurs at a charge +2 μC cm−2. A Frumkin isotherm is obeyed. standard Gibbs energy quadratic function the surface ΔGo value zero −24.9 kJ mol−1. most probable model for layer that two capacitors series. orientation organic molecule interface discussed.
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