Novel cerium and praseodymium doped phosphate tungsten bronzes: Synthesis, characterization, the behavior in the Briggs-Rauscher reaction and photoluminescence properties.

Due to the interesting and potentially useful properties, phosphate tungsten bronzes are constantly being studied and attract a lot of attention. In the present work, two different metallic elements, belonging to the group of rare-earth metals, cerium and praseodymium, were used as a dopants for phosphate tungsten bronzes. Novel cerium and praseodymium doped phosphate tungsten bronzes were successfully synthesized and further characterized by thermal analyses, Fourier-transform infrared spectroscopy, X-ray powder diffraction, scanning electron microscopy with energy-dispersive X-ray spectrometer and photoluminescence spectroscopy. The behavior of cerium and praseodymium doped phosphate tungsten bronzes were examined in the Briggs-Rauscher oscillatory reaction. The changes in the oscillatory dynamics, caused by the addition of cerium doped and praseodymium doped phosphate tungsten bronzes, are used for distinction of these bronzes and also as a method for testing the catalytic features of the bronzes. Beside the nonlinear behavior, the bronzes have shown photoluminescence in the visible region (blue region). [Display omitted] • Novel Ce and Pr doped phosphate tungsten bronzes (PWB) were synthesized. • Doped PWBs were characterized by TA, FTIR, XRPD, SEM with EDX and PL spectroscopy. • Ce and Pr PWB influence on the Briggs-Rauscher (BR) oscillatory dynamics is investigated. • BR is method used for testing catalytic properties of doped PWBs. • Potential application of material as blue light source for LEDs. [ABSTRACT FROM AUTHOR]