EXAFS AND XANES STUDY ON SPINEL STRUCTURE MATERIALS AND THEIR APPLICATION TO HUMIDITY SENSORReport as inadecuate




EXAFS AND XANES STUDY ON SPINEL STRUCTURE MATERIALS AND THEIR APPLICATION TO HUMIDITY SENSOR - Download this document for free, or read online. Document in PDF available to download.



Abstract : The deterioration mechanism of the humidity sensors were investigated by Fe K-EXAFS and XANES. The humidity sensors were composed of spinel structure materials , Zn0.98Na0.02Fe 2O4. and Mg0.98Na0.02Fe2O4. The former is excellent in durability, while the latter is poor. It was suggested that the deterioration of Mg0.98Na0.02Fe2O4 is attributable to the movement of Fe atoms. It was shown that a laboratory scale equipment is extremely useful tool to study not only the atomic radial distribution, but also the coordination geometry around excited atoms.





Author: T. Okamato T. Suzuki N. Matsui

Source: https://hal.archives-ouvertes.fr/



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