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Poster

Optimization of iridium oxy-hydroxide films for pH monitoring of underground components of nuclear repositories

Abstract : For the long-term monitoring of the pore water of clay-based disposal systems, the development of robust all-solid pH sensors, which do not necessitate any maintenance, is required. Due to their high stability, corrosion resistance and reversible redox properties, iridium oxyhydroxides (IrOx) are widely investigated for pH sensing and can be regarded among the promising technologies to be devoted to the observation and monitoring of pH of underground components of nuclear repositories. This work aimed at in depth investigating and optimizing the IrOx coating process for pH measurements in agreement with the specific constraints related to on-site conditions. Electrochemically assisted synthesis was selected in order to control the oxidation states of IrOx redox active species in the coating
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Poster
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https://hal-brgm.archives-ouvertes.fr/hal-03642131
Contributeur : Romain Rodrigues Connectez-vous pour contacter le contributeur
Soumis le : jeudi 14 avril 2022 - 18:40:08
Dernière modification le : vendredi 24 juin 2022 - 03:20:34

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Clay 2022 IrOx pH sensors.pdf
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  • HAL Id : hal-03642131, version 1

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Romain Rodrigues, Ioannis Ignatiadis, Johan Bertrand, Stéphanie Betelu. Optimization of iridium oxy-hydroxide films for pH monitoring of underground components of nuclear repositories. 8th International Conference on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, Jun 2022, Nancy, France. ⟨hal-03642131v1⟩

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