A study of thermal behavior of cesium phosphate.

Zhang, Guoliang; Peng, Zhijian; Li, Chunshan

Cesium phosphates with different Cs/P molar ratios were prepared by a solution evaporation method. X-ray powder diffraction, thermogravimetric, and differential thermal analyses were performed in order to reveal the chemical transformation and phase compositions which take place during the heating of the mixtures CsCO/(NH)HPO and CsNO/(NH)HPO as well as individual compound. The effects of the Cs/P molar ratio, Cs source and treatment temperature on thermal behavior of the cesium phosphates were investigated. The results showed that different reactions take place with molar ratio from 1/2 to 3/1. Meanwhile, the thermostability of CsCO and CsNO intimately affects the phase composition and phase transition during heating process. However, for all the Cs-P oxides samples, the crystallinity was decreased differently after higher temperature treatment.

CESIUM compounds; EVAPORATION (Chemistry); THERMAL stability; X-ray powder diffraction; THERMOGRAVIMETRY

Journal of Thermal Analysis & Calorimetry, 2016, Vol 124, Issue 2, p1063

1388-6150

Academic Journal

10.1007/s10973-015-5192-x