Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Crystallochemistry and properties of compounds and solid solutions containing rhombohedral frameworks of (M/sub 2/(EO/sub 4/)/sub 3/) /SUP P-/ )/sub 3/ omega composition

Journal Article · · Inorg. Mater. (Engl. Transl.); (United States)
OSTI ID:7253846
; ;
Three-dimensional superionic conductors with framework structures of rhombohedral type are promising materials for use in solid electrolytes in Na-S batteries. The most effective representatives of this group of substances are the sodium-zirconium silicophosphate produced previously having the approximate composition Na/sub 3/Zr/sub 2/Si/sub 2/Po/sub 12/ (NASICON) and the compound Na/sub 3/ Sc/sub 2/ (PO/sub 4/)/sub 3/. This paper researches compounds and solid solutions having (M/sub 2/(EO/sub 4/)/sub 2/)P-/sub 300/ rhombohedral frameworks (M is a trivalent or quadrivalent cation, and E is P, Si, or Ge). The authors attempt to examine the existence conditions for phases similar in structure and properties to NASICON and to establish the effects of various forms of substitution in the framework on the structural and electrophysical characteristics. The entire discussion is based on previous crystallochemical analysis of the composition-structure-property relationships for compounds crystallizing in the rhombohedral structural type, as well as with the structure types of garnet and langbeinite and on a proposed model for phase transitions of ferroelectric-superionic type in Na-Sc phosphate.
Research Organization:
Karpov Physiotechnical Institute
OSTI ID:
7253846
Journal Information:
Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 22:1; ISSN INOMA
Country of Publication:
United States
Language:
English

Similar Records

Fast-ion transport in the NASICON analog Na/sub 3/Sc/sub 2/(PO/sub 4/)/sub 3/: structure and conductivity
Conference · Thu Mar 31 23:00:00 EST 1983 · OSTI ID:6099174
New titanium-vanadium phosphates of NASICON and langbeinite structures, and differences between the two structures toward deintercalation of alkali metal
Journal Article · Mon Feb 28 23:00:00 EST 1994 · Journal of Solid State Chemistry; (United States) · OSTI ID:6880676
Structural changes in the compounds LiM{sub 2}{sup IV}(PO{sub 4}){sub 3} (M{sup IV}=Ge, Ti, Sn, and Hf) as followed by {sup 31}P and {sup 7}Li NMR
Journal Article · Sun Jun 01 00:00:00 EDT 1997 · Physical Review, B: Condensed Matter · OSTI ID:509041

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
CHEMICAL COMPOSITION
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALLOGRAPHY
DISPERSIONS
ELECTRIC BATTERIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
FERROELECTRIC MATERIALS
GERMANATES
GERMANIUM COMPOUNDS
IONIC CONDUCTIVITY
METAL-NONMETAL BATTERIES
MIXTURES
OXYGEN COMPOUNDS
PHASE STUDIES
PHASE TRANSFORMATIONS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
SCANDIUM COMPOUNDS
SCANDIUM PHOSPHATES
SILICATES
SILICON COMPOUNDS
SILICON PHOSPHATES
SODIUM COMPOUNDS
SODIUM PHOSPHATES
SODIUM-SULFUR BATTERIES
SOLID ELECTROLYTES
SOLID SOLUTIONS
SOLUTIONS
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENT COMPOUNDS
TRIGONAL LATTICES
ZIRCONIUM COMPOUNDS
ZIRCONIUM PHOSPHATES