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in creator/contributor: "Davenport, A.J. Brookhaven National Lab., Upton, NY United States"  
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Simulations of surface capacitance effects on potentiostat response following disruption of passivity

Description: Following depassivation of potentiostatically controlled metals, complex current transients arise because of the current distribution and the capacitance of the surrounding passive metal/solution interface. A computer simulation of the cross-section has been developed. Examples following an instantaneous scratch are given for changes in the placement of the reference electrode and changes in the area of the passive surface.
Date: January 1, 1991
Creator: Isaacs, H. S.; Davenport, A. J. (Brookhaven National Lab., Upton, NY (United States)) & Frankel, G. S. (IBM Research Div., Yorktown Heights, NY (United States))
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Partner: UNT Libraries Government Documents Department
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XANES and XPS studies of the reduction of ammonium paramolybdate

Description: in situ glancing-angle x-ray reflectivity experiments were performed on electrochemical reduction products formed in a dilute paramolybdate solution on a platinum electrode. These data were compared with x-ray photoelectron spectra which showed formation of simple molybdate, pentavalent and tetravalent species at increasingly negative potentials. X-ray absorption data demonstrated changes in edge position, pre-edge structure and edge height corresponding to reduction and subsequent growth of th… more
Date: January 1, 1991
Creator: Halada, G. P.; Clayton, C. R. (State Univ. of New York, Stony Brook, NY (United States). Dept. of Materials Science and Engineering); Isaacs, H. S. & Davenport, A. J. (Brookhaven National Lab., Upton, NY (United States))
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Partner: UNT Libraries Government Documents Department
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