Synthesis and properties of liquid luminophores based on the POCl3-BiCl3-MCl x system

Autor: G. V. Tikhonov, D. V. Kabakov, M. V. Zelenskaya
Rok vydání: 2009
Předmět:
Zdroj: Radiochemistry. 51:250-255
ISSN: 1608-3288
1066-3622
Popis: Stable BiCl3-containing solutions of phosphorus oxychloride, activated with UO22+ and Nd3+ ions, can be prepared only in the presence of another Lewis acid MClx. The electronic absorption spectra of the liquids prepared and the decay times of the Nd3+ luminescence are characteristic of individual solutions based on POCl3-MClx. The radiation-chemical yield of Nd3+ in the excited state 4F3/2 in POCl3-BiCl3-MClx-235UO22+-Nd3+ solutions upon homogeneous excitation with uranium α-particles is lower than in POCl3-MClx-235UO22+-Nd3+ solutions at comparable component concentrations. Apparently, Bi3+ in solutions based on the POCl3-BiCl3-MClx system is not incorporated in neodymium- and/or uranyl-containing complexes and remains in the matrix.
Databáze: OpenAIRE