Die bedeutung der adsorption in der polarographie

3-Hydroxybenzoic acid as AISI 316L stainless steel corrosion inhibitor in a H2SO4?HF?H2O2 pickling solution

“…Equation (2) is valid based on the assumption that: (a) the adsorption sites on the AISI 316L SS surface are homogeneous, (b) a monolayer inhibitor adsorption is formed, and (c) dissolution is uniform and no localised attack takes place. The c cal value is obtained by evaluation of the theoretical isotherm for a value of h exp and given the values of k, f and/or v parameters of the utilised isotherm (see Table 2) [10][11][12][13][14][15][16][17]; k is the equilibrium constant of the adsorption reaction:…”

The use of silver solid amalgam electrode for voltammetric and amperometric determination of nitroquinolines

“…The phenomenon of two step reduction in media with lack of protons, e.g., aprotic solvents [56][57][58][59] or their mixtures with alkaline aqueous solutions [53] and aqueous solutions containing organic surfactants [60][61][62][63][64] was described for many aromatic nitro derivatives for mercury electrodes. For solid electrode surfaces, this phenomenon was described in alkaline (0.1 mol L −1 NaOH) solutions containing 15% methanol at gold, silver and platinum electrode [65], gold and glassy carbon electrodes [66] and borondoped diamond electrodes [67].…”

Coadsorption of triphenylphosphine – triphenylphosphine oxide, triphenylphosphine – dodecyldiphenylphosphine oxide, and dodecyldiphenylphosphine oxide – tri(n)octylphosphine oxide from methanolic solutions on a polarized mercury electrode

“…From eq. [2] and the first mean value theorem we obtain [5] (s) ck, = 0 and ( ) ck, < O That is, the maximum in the @ vs. E curve at CA, corresponds to the adsorption maximum of A[ at a concentration cAIr, which generally is smaller than CA,. The maximum in the @ vs. E plots will give the adsorption maximum of Al only when it is independent of the concentration of A,.…”

“…Because of the experimental PhosPhine oxide (DDPO), and dodecyldiphenylphosphine oxide difficulties, but also due to the lack of a quantitative approach to (DDPo) -tri(n)OctylphOsphine at the mercurythe coadsorption phenomenon based on realistic models, a methanolic solution interface. ' The individual adsorption of number of publications have a purely qualitative character these substances has already been studied in our laboratory (4)(5)(6)(7). A strictly quantitative work is that of the Russian (22)(23)(24).…”