Thumbnail
Access Restriction
Open

Author Vu, T. D. ♦ Barre, M. ♦ Adil, K. ♦ Jouanneaux, A. ♦ Suard, E. ♦ Goutenoire, F.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ♦ ELECTRICAL PROPERTIES ♦ IMPEDANCE ♦ LANTHANUM IONS ♦ LANTHANUM OXIDES ♦ LATTICE PARAMETERS ♦ NEUTRON DIFFRACTION ♦ NIOBIUM OXIDES ♦ PHASE DIAGRAMS ♦ POWDERS ♦ SPECTROSCOPY ♦ TETRAGONAL LATTICES ♦ TUNGSTATES ♦ TUNGSTEN OXIDES ♦ X-RAY DIFFRACTION
Abstract In the course of the exploration of the La{sub 2}O{sub 3}–WO{sub 3}–Nb{sub 2}O{sub 5} ternary phase diagram, a new compound with the formula La{sub 3}NbWO{sub 10} was discovered. Its structure was determined from a combination of powder X-ray and neutron diffraction data. It crystallizes in the tetragonal space group P4{sub 2}/nmc (no. 137) with the lattice parameters: a=10.0807(1) Å; c=12.5540(1) Å. The structure is built up from infinite ribbons of octahedra (W/Nb)O{sub 5} which are perpendicular to each other, lanthanum ions being distributed around these ribbons. The electrical properties of this compound were investigated on sintered pellets by means of complex impedance spectroscopy. - Graphical abstract: Projection along the c-axis of cationic and anionic positions of a La{sub 3}NbWO{sub 10} unit cell. - Highlights: • The structure of La{sub 3}NbWO{sub 10} was resolved from the XRD and ND data. • The structure was described in many ways. • The ionic conduction property was studied.
ISSN 00224596
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-09-15
Publisher Place United States
Journal Journal of Solid State Chemistry
Volume Number 229


Open content in new tab

   Open content in new tab