Cesium dizirconium phosphate: Synthesis and thermal properties

Autor:	V. N. Loshkarev, E. A. Asabina, V. I. Pet’kov, D. B. Kitaev, A. A. Rodinov
Rok vydání:	2006
Předmět:	chemistry.chemical_compound Thermal conductivity chemistry Scanning electron microscope Caesium Thermal Analytical chemistry chemistry.chemical_element Infrared spectroscopy Physical and Theoretical Chemistry Phosphate Heat capacity Sol-gel
Zdroj:	Radiochemistry. 48:227-233
ISSN:	1608-3288 1066-3622
Popis:	Crystalline CsZr2(PO4)3 with the NZP [NaZr2(PO4)3] structure was prepared by a sol gel procedure. The purity and composition of the sample were determined by scanning electron microscopy with energy-dispersive X-ray analysis as well as by X-ray phase analysis and IR spectroscopy. CsZr2(PO4)3 is thermally stable in the range 7 K < T < 1553 K. Temperature dependences of the heat capacity C p 0 = f(T) and thermal conductivity λ = f(T) of the phosphate in the range 320–650 K corresponding to thermal conditions of a nuclear waste repository were studied. The standard thermodynamic functions C p 0 (T), H 0(T)–H 0(0), S 0(T), and G 0(T)–H 0(0) were calculated. The thermodynamic functions of formation of CsZr2(PO4)3 were calculated. The possibility of decreasing the temperature of the synthesis-immobilization to 1000 K was experimentally confirmed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::314c754bb6cdc890bbd8d44fb14b2d54 https://doi.org/10.1134/s1066362206030040 Zobrazit plný text záznamu Plný text ve formátu PDF