Analysis of sodium generation by sodium oxide decomposition on corrosion resistance materials: a new approach towards sodium redox water-splitting cycle.

In this study, the investigation of materials with corrosion resistance was carried out to prevent side reactions caused by sodium oxide (NaO) in the Na-redox thermochemical water splitting cycle, and essential operational conditions for sodium (Na) generation from NaO were also investigated. Thermal desorption spectroscopy and X-ray diffraction techniques at altered conditions were mainly used for the experimental investigation. Numerous types of materials were tested to find materials with high resistance towards corrosion and to understand essential thermal decomposition processes of NaO.