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首页> 外文期刊>Corrosion: The Journal of Science and Engineering >In-Situ Imaging of Chloride Ions at the Metal/Solution Interface by Scanning Combination microelectrodes
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In-Situ Imaging of Chloride Ions at the Metal/Solution Interface by Scanning Combination microelectrodes

机译：In-Situ Imaging of Chloride Ions at the Metal/Solution Interface by Scanning Combination microelectrodes

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摘要

Combination solid silver-silver chloride (Ag-AgCl) and liquid membrane CL ion-selective microelectrodes were designed and constructed. These microelectrodes, which had a micrometer-sized tip, contained two compartments: one sewed as the reference electrode and the other as the CL ion-selective electrode. The microelectrodes were used to map in-situ CL ion distribution in several localized corrosion systems. When used with a computerized scanning stage, the microelectrodes provided information on the distribution of CL ions near the metal/electrolyte interface. CL ions were observed migrating toward and accumulating near the anodic region forming a "CL ion-rich island" on the metal surface. Scanning combination CL ion-selective microelectrodes may provide a useful tool for mechanistic studies of localized corrosion.

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