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New Complex Phosphate Cation‐Conducting Materials in Ternary System Li 3 PO 4 –Na 3 PO 4 –InPO 4
Author(s) -
Potapova Anna,
Novoselov Andrey,
Zimina Galina
Publication year - 2011
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2011.04454.x
Subject(s) - ionic conductivity , cationic polymerization , ternary operation , ternary numeral system , ionic bonding , vacancy defect , phosphate , conductivity , solid solution , powder diffraction , inorganic chemistry , phase (matter) , chemistry , dielectric spectroscopy , materials science , analytical chemistry (journal) , crystallography , ion , metallurgy , electrochemistry , organic chemistry , electrode , chromatography , computer science , electrolyte , programming language
Phase equilibrium in ternary system Li 3 PO 4 –Na 3 PO 4 –InPO 4 and formation of heterovalent Zr‐substituted solid solutions (up to 15 mol%) for In 3+ in Li 3 In 2 (PO 4 ) 3 and Na 3 In 2 (PO 4 ) 3 complex phosphates were studied by the cross‐section method at 950°C. Samples obtained were investigated by X‐ray powder diffraction and impedance spectroscopy. Ionic conductivity of Na 3 In 2 (PO 4 ) 3 and Li 3 In 2 (PO 4 ) 3 complex phosphates is about 10 −2 S/cm at 300°C. Heterovalent substitution was performed according to the scheme: In 3+ =Zr 4+ + v , where v is a vacancy in cationic sublattice. Zr‐substituted (15 mol%) Na 3 In 2 (PO 4 ) 3 and Li 3 In 2 (PO 4 ) 3 have ionic conductivity of about 10 −1 S/cm at 300°C.