Understanding the Hydrothermal Formation of NaNbO₃: Its Full Reaction Scheme and Kinetics.

ABSTRACT: Sodium niobate (NaNbO₃) attracts attention for its great potential in a variety of applications, for instance, due to its unique optical properties. Still, optimization of its synthetic procedures is hard due to the lack of understanding of the formation mechanism under hydrothermal conditions. Through in situ X-ray diffraction, hydrothermal synthesis of NaNbO₃ was observed in real time, enabling the investigation of the reaction kinetics and mechanisms with respect to temperature and NaOH concentration and the resulting effect on the product crystallite size and structure. Several intermediate phases were observed, and the relationship between them, depending on temperature, time, and NaOH concentration, was established. The reaction mechanism involved a gradu

SUBMITTER: Skjærvo SL 

PROVIDER: S-EPMC8188525 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature