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- Title
Ionic Conductivity of the NASICON‐Related Thiophosphate Na<sub>1+x</sub>Ti<sub>2−x</sub>Ga<sub>x</sub>(PS<sub>4</sub>)<sub>3</sub>.
- Authors
Schlem, Roman; Till, Paul; Weiss, Manuel; Krauskopf, Thorben; Culver, Sean P.; Zeier, Wolfgang G.
- Abstract
Inspired by the recent interest in fast ionic conducting solids for electrolytes, the ionic conductivity of a novel ionic conductor Na1+xTi2−xGax(PS4)3 has been investigated. Using X‐ray diffraction and impedance spectroscopy the sodium ionic conductivity in this compound was demonstrated, in which bond valence sum analysis suggests a tunnel diffusion for Na+. Substitution with Ga3+ leads to an increasing Na+ content, an expansion of the lattice and an increasing conductivity with increasing x in Na1+xTi2−xGax(PS4)3. Given the relation to the NASICON family, upon replacement of the phosphate by a thiophosphate group, a rich structural chemistry can be expected in this class of materials. This work demonstrates the potential for making NaTi2(PS4)3 an ideal system to study structure‐property relationships in ionic conductors. Good conduct: Inspired by the recent interest in fast ionic conducting solids for electrolytes, a trial of cation substitution within a novel, NASICON‐related sodium‐ion conducting thiophosphate is reported. This demonstrates the potential for making NaTi2(PS4)3 an ideal system to study structure‐property relationships in ionic conductors
- Subjects
IONIC conductivity; IONIC crystals
- Publication
Chemistry - A European Journal, 2019, Vol 25, Issue 16, p4143
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.201805569