Results 211 to 220 of about 10,133 (257)

Anodic Dissolution of N+ Silicon

Journal of The Electrochemical Society, 1971
An experimental study has been made of the anodic dissolution of silicon in aqueous solution with emphasis on heavily doped n‐type. Current‐voltage curves, the effective dissolution valence, and the critical current density have been determined for n, n+, and p samples. Since n+ silicon has a resistivity less than 0.05 ohm‐cm, it can be electropolished
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Anodic dissolution of adsorbed hydrogen

Transactions of the Faraday Society, 1966
Hydrogen adsorption isotherms have been determined on catalyzed carbon electrodes. Curves similar to the Freundlich isotherm were obtained and at atmospheric pressure 4 ml g–1 of dry hydrogen was adsorbed, but when the electrode was wetted with potassium hydroxide solution the adsorption increased to a total of 14.0 ml g–1.
M. I. Gillibrand, K. Graham, G. R. Lomax
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The anodic dissolution of chalcocite in an ammoniacal environment

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1977
Abstract Presented is the proposed model for the mechanism of anodic oxidation of the semiconductor mineral chalcocite in an ammoniacal environment. The kinetic parameters of the process αa, ks, j00, the formal potential and the electrochemical order of the reaction in relation to ammonia are given.
Maria Hepel, Tadeusz Hepel
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A Mechanism for the Anodic Dissolution of Magnesium

Journal of The Electrochemical Society, 1956
Magnesium anodes were electrolyzed in 3% solution in a simple electrolysis cell. Mg in the anolyte, Mg in the corrosion product, total hydrogen evolved, and weight loss were determined. It was found that the quantities soluble Mg, insoluble Mg, Mg calculated from the current passed were in approximate one to one relationship with each other and all of ...
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The effect of dicarboxylates on the anodic dissolution of cobalt

Protection of Metals, 2000
The effect of sodium salts of dicarboxylic acids on the anodic dissolution of cobalt in solutions of perchlorates is considered. Acceleration of the dissolution is observed only if the pH of such a solution falls into the domain of the formation and existence of soluble complexes of Co(II) with the corresponding acid.
S. P. Chernova, M. V. Rylkina, S. M. Reshetnikov, A. Yu. Chikanova, E. Kh. Ivanova   +4 more
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Anodic dissolution of copper(II) sulphide

Surface Technology, 1981
Abstract The anodic behaviour of CuS in hydrochloric acid medium was studied. The observed active-passive type of behaviour could be principally due to the formation of elemental sulphur coupled with the pore diffusion model and/or to some stoichiometric changes at the effective electrode-electrolyte interface.
Edward Ghali, Balasubramaniam Dandapani, Andrzej Lewenstam   +2 more
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Anodic Dissolution of Zinc in Potassium Nitrate

Journal of The Electrochemical Society, 1967
Abstract : The apparent valence of pure zinc dissolving anodically in 3% KNO3 was determined as a function of current density, temperature, and ultrasonic agitation. The apparent valence of zinc dissolving anodically at 24C at current densities < 30 ma/sq cm is 2.01 = 0.01.
M. E. Straumanis, J. L. Reed, W. J. James   +2 more
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Anodes - Dissolution and Change of Shape

CORROSION 1981, 1981
Abstract Results of inspection and examination of anodes operating at sea are presented. The effects of quality of anode material and current density on the performance of anodes are discussed. The "end effect" is explained and conclusions drawn as to the optimal shape of anode.
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Impedance Measurements of the Anodic Iron Dissolution

Journal of The Electrochemical Society, 1980
The kinetics of the Fe/Fe2+ electrode have previously been explained on the basis of either a consecutive or a catalytic charge transfer mechanism including adsorbed intermediates. In order to obtain more exact kinetic information, pulse and frequency response measurements on polycrystalline Fe in acidic sulfate solutions at have been carried out.
H. Schweickert, W. J. Lorenz, H. Friedburg   +2 more
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Anodic Dissolution and Selective Corrosion of Alloys

Protection of Metals, 2002
The mechanisms of the anodic dissolution of alloys are considered. The kinetic explanation of an abrupt increase in the corrosion resistance of the alloys, formed by metallic systems with a continuous series of solid solutions, is given. The dezincification of brasses related to the reduction of the oxidation products of copper is accounted for by the ...
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