Valency and Structure of Iridium in Anodic Iridium Oxide Films
Source abstract
Abstract
The valence of iridium in anodic iridium oxide films has been determined by x‐ray absorption spectroscopy and varies between 3.0 and 4.8 in a voltammogram cycle. When the valency starts to increase the first coordination shell around an iridium ion begins to shrink from 0.203 at to 0.191 nm at . At the same time a strong spread in the interatomic distances in this shell is observed. Our data give support to the model proposed by Kötz et al. for the charge exchange reaction during a voltammogram cycle.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Anodic Oxide Films and Nanostructures · Semiconductor materials and devices · Advanced Memory and Neural Computing
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Affiliations
Institut für Festkörperforschung, Forschungszentrum Jülich, D‐5170 Jülich, Germany
Institut für Schicht‐ und Ionentechnik, Forschungszentrum Jülich, D‐5170 Jülich, Germany
References
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