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Title: New substituted copper titanates with the CaCu/sub 3/Ti/sub 4/O/sub 12/ structure: Li(Cu/sub 3-x/Li/sub x/)(Ti/sub 3-x/M/sub 1 + x//sup v/)O/sub 12/ (M/sup V/ = Nb: 0. 12 less than or equal to x less than or equal to 0. 33; M/sup V/ = Ta: x 0. 33)

Abstract

New substituted copper titanates with the CaCu/sub 3/Ti/sub 4/O/sub 12/ perovskite-like structure were synthesized and characterized. Their formula is Li absolute value of Cu/sub 3-x/Li/sub x/ absolute value of Ti/sub 3-x/M/sub 1 + x//sup V/ O/sub 12/. There is a homogeneity range for M/sup V/ = Nb, 0.12 less than or equal to x less than or equal to 0.33, and a unique composition for M/sup V/ = Ta, x = 0.33. The unit cell is cubic: a approx. 2a/sub p/ (parameter of the ideal cubic cell) approx. 7.40 A. The CaCu/sub 3/Ti/sub 4/O/sub 12/-type structure was confirmed from an X-ray powder structural determination. Lithium occupies both square planar sites where it replaces copper and icosahedral sites, with a probable delocalization. Crystal chemistry of the AC/sub 3/B/sub 4/O/sub 12/ structure is considered, taking into account the evolution of anion packing and the distortion of polyhedra. A diagrammatic representation is proposed so that precise information on the regularity of the C/sub 3/B/sub 4/O/sub 12/ network can be obtained.

Authors:
;
Publication Date:
Research Org.:
Universite d'Orleans et C.R.P.H.T., France
OSTI Identifier:
6545810
Resource Type:
Journal Article
Journal Name:
J. Solid State Chem.; (United States)
Additional Journal Information:
Journal Volume: 66:2
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPPER OXIDES; CRYSTAL STRUCTURE; LATTICE PARAMETERS; LITHIUM OXIDES; NIOBIUM OXIDES; TANTALUM OXIDES; TITANIUM OXIDES; BOND ANGLE; BOND LENGTHS; CUBIC LATTICES; EXPERIMENTAL DATA; POWDERS; X-RAY DIFFRACTION; ALKALI METAL COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; CRYSTAL LATTICES; DATA; DIFFRACTION; DIMENSIONS; INFORMATION; LENGTH; LITHIUM COMPOUNDS; NIOBIUM COMPOUNDS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; REFRACTORY METAL COMPOUNDS; SCATTERING; TANTALUM COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 360202* - Ceramics, Cermets, & Refractories- Structure & Phase Studies

Citation Formats

Mouron, P, and Choisnet, J. New substituted copper titanates with the CaCu/sub 3/Ti/sub 4/O/sub 12/ structure: Li(Cu/sub 3-x/Li/sub x/)(Ti/sub 3-x/M/sub 1 + x//sup v/)O/sub 12/ (M/sup V/ = Nb: 0. 12 less than or equal to x less than or equal to 0. 33; M/sup V/ = Ta: x 0. 33). United States: N. p., 1987. Web. doi:10.1016/0022-4596(87)90200-3.
Mouron, P, & Choisnet, J. New substituted copper titanates with the CaCu/sub 3/Ti/sub 4/O/sub 12/ structure: Li(Cu/sub 3-x/Li/sub x/)(Ti/sub 3-x/M/sub 1 + x//sup v/)O/sub 12/ (M/sup V/ = Nb: 0. 12 less than or equal to x less than or equal to 0. 33; M/sup V/ = Ta: x 0. 33). United States. https://doi.org/10.1016/0022-4596(87)90200-3
Mouron, P, and Choisnet, J. 1987. "New substituted copper titanates with the CaCu/sub 3/Ti/sub 4/O/sub 12/ structure: Li(Cu/sub 3-x/Li/sub x/)(Ti/sub 3-x/M/sub 1 + x//sup v/)O/sub 12/ (M/sup V/ = Nb: 0. 12 less than or equal to x less than or equal to 0. 33; M/sup V/ = Ta: x 0. 33)". United States. https://doi.org/10.1016/0022-4596(87)90200-3.
@article{osti_6545810,
title = {New substituted copper titanates with the CaCu/sub 3/Ti/sub 4/O/sub 12/ structure: Li(Cu/sub 3-x/Li/sub x/)(Ti/sub 3-x/M/sub 1 + x//sup v/)O/sub 12/ (M/sup V/ = Nb: 0. 12 less than or equal to x less than or equal to 0. 33; M/sup V/ = Ta: x 0. 33)},
author = {Mouron, P and Choisnet, J},
abstractNote = {New substituted copper titanates with the CaCu/sub 3/Ti/sub 4/O/sub 12/ perovskite-like structure were synthesized and characterized. Their formula is Li absolute value of Cu/sub 3-x/Li/sub x/ absolute value of Ti/sub 3-x/M/sub 1 + x//sup V/ O/sub 12/. There is a homogeneity range for M/sup V/ = Nb, 0.12 less than or equal to x less than or equal to 0.33, and a unique composition for M/sup V/ = Ta, x = 0.33. The unit cell is cubic: a approx. 2a/sub p/ (parameter of the ideal cubic cell) approx. 7.40 A. The CaCu/sub 3/Ti/sub 4/O/sub 12/-type structure was confirmed from an X-ray powder structural determination. Lithium occupies both square planar sites where it replaces copper and icosahedral sites, with a probable delocalization. Crystal chemistry of the AC/sub 3/B/sub 4/O/sub 12/ structure is considered, taking into account the evolution of anion packing and the distortion of polyhedra. A diagrammatic representation is proposed so that precise information on the regularity of the C/sub 3/B/sub 4/O/sub 12/ network can be obtained.},
doi = {10.1016/0022-4596(87)90200-3},
url = {https://www.osti.gov/biblio/6545810}, journal = {J. Solid State Chem.; (United States)},
number = ,
volume = 66:2,
place = {United States},
year = {Sun Feb 01 00:00:00 EST 1987},
month = {Sun Feb 01 00:00:00 EST 1987}
}