Print Email Facebook Twitter Tantalum-Palladium Title Tantalum-Palladium: Hysteresis-Free Optical Hydrogen Sensor Over 7 Orders of Magnitude in Pressure with Sub-Second Response Author Bannenberg, L.J. (TU Delft RID/TS/Instrumenten groep) Schreuders, H. (TU Delft ChemE/Afdelingsbureau) Dam, B. (TU Delft ChemE/Materials for Energy Conversion and Storage) Date 2021 Abstract Hydrogen detection in a reliable, fast, and cost-effective manner is a prerequisite for the large-scale implementation of hydrogen in a green economy. Thin film Ta1−yPdy is presented as an effective optical sensing material with extremely wide sensing ranges covering at least 7 orders of magnitude in hydrogen pressure. Nanoconfinement of the Ta1−yPdy layer suppresses the first-order phase transitions present in bulk and ensures a sensing response free of any hysteresis. Unlike other sensing materials, Ta1−yPdy features the special property that the sensing range can be easily tuned by varying the Pd concentration without a reduction of the sensitivity of the sensing material. Combined with a suitable capping layer, sub-second response times can be achieved even at room temperature, faster than any other known thin-film hydrogen sensor. Subject metal hydridesoptical hydrogen sensingtantalumthin filmsX-ray diffraction To reference this document use: http://resolver.tudelft.nl/uuid:b11f3030-7cb0-4582-b9f4-0d64e933c116 DOI https://doi.org/10.1002/adfm.202010483 ISSN 1616-301X Source Advanced Functional Materials, 31 (16) Part of collection Institutional Repository Document type journal article Rights © 2021 L.J. Bannenberg, H. Schreuders, B. Dam Files PDF adfm.202010483.pdf 3.81 MB Close viewer /islandora/object/uuid:b11f3030-7cb0-4582-b9f4-0d64e933c116/datastream/OBJ/view