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Title: Structure of compound Pr{sub 5}Mo{sub 3}O{sub 16+δ} exhibiting mixed electronic—ionic conductivity

The structure of Pr{sub 5}Mo{sub 3}O{sub 16+δ} single crystals is studied by X-ray diffraction, EDXS microanalysis, transmission microscopy, and XANES spectroscopy. It is found that in the structure Pr and Mo cations mutually replace each other, atomic positions of oxygen are split into several additional positions, and structural voids accommodate interstitial oxygen atoms (which make the main contribution to the conductivity). The disorder of the oxygen sublattice is responsible for the continuity of the framework of the ways of migration of oxygen ions.
Authors:
; ; ; ;  [1] ;  [2] ; ; ;  [3]
  1. Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)
  2. National Research Center “Kurchatov Institute” (Russian Federation)
  3. Moscow State University, Faculty of Physics (Russian Federation)
Publication Date:
OSTI Identifier:
22472154
Resource Type:
Journal Article
Resource Relation:
Journal Name: Crystallography Reports; Journal Volume: 60; Journal Issue: 5; Other Information: Copyright (c) 2015 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION SPECTROSCOPY; CATIONS; CONCENTRATION RATIO; IONIC CONDUCTIVITY; MICROANALYSIS; MICROSCOPY; MOLYBDATES; MONOCRYSTALS; OXYGEN IONS; PLATINUM COMPOUNDS; VOIDS; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY