Solid-state synthesis of phosphates of NASICON type in the Na2O-P2O5-Fe2O3- Nb2O5 system

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作者：

Kievskij Natsional'nyj Univ., Kiev, Ukraine ^{[1
]}

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来源：

Ukrainskij Khimicheskij Zhurnal | 2003年 / 69卷 / 9-10期

关键词：

Calculations - Crystal structure - Electron spin resonance spectroscopy - Iron oxides - Lattice constants - Niobium compounds - Sodium compounds - X ray powder diffraction;

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摘要：

A number of isostructural double phosphates of NASICON type in the Na2O-P2O5-Fe2O3- Nb2O5 system were prepared by solid-phase synthesis. The lattice parameters of the resulting compounds were calculated based on the data of X-ray powder diffraction. The process of partial reduction of Nb5+ to Nb4+ was determined by ESR and diffuse reflection spectroscopy at specified ratios of components.

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页码：12 / 14