Simultaneous Measurement of Adsorption and Electrodekinetic Parameters at Metal Surfaces

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Abstract

MR. PEERS presents a solution to the technical problem of mounting a metal film in contact with a solution in such a way that cements, etc., do not cause contamination of the solution. Mr. Peers's solution of this problem is not compatible with the gradual approach of solution to the metal surface which is a characteristic feature of the method described by us. This method of gradual approach is necessary when the solution background exceeds a small fraction of the radiation from the adsorbed amount (Fig. 1 in our communication). However, Mr. Peers points out that the background from his solution was negligible compared with the activity of the adsorbed amount. Simple computation indicates that the maximum concentration of adsorbable species in the solution has to be smaller than about 10−6 mole 1.−1 in Mr. Peers's method. Our technique enables determinations of adsorbed amounts (with a precision of 0.1 of a monolayer) up to concentrations of adsorbate in the solution of about 10−3 mole 1.−1.

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BLOMGREN, E., BOCKRIS, J. Simultaneous Measurement of Adsorption and Electrodekinetic Parameters at Metal Surfaces. Nature 187, 504 (1960) doi:10.1038/187504a0

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