Preparation, crystal structure and oxide ion conductivity of binary rare earth fluoride oxides

1991 ◽  
Vol 54 (1-3) ◽  
pp. 168
Author(s):  
M. Takashima
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Ion Conductivity ◽  
Rare Earth Fluoride ◽  
Oxide Ion Conductivity ◽  
Earth Fluoride ◽  
Oxide Ion ◽  
Binary Rare Earth

High-pressure Syntheses and Characterization of the Rare-earth Fluoride Borates RE2(BO3)F3 (RE=Tb, Dy, Ho)

2013 ◽  
Vol 68 (11) ◽  
pp. 1198-1206 ◽  
Author(s):  
Ernst Hinteregger ◽  
Michael Enders ◽  
Almut Pitscheider ◽  
Klaus Wurst ◽  
Gunter Heymann ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Rare Earth ◽  
Monoclinic Space Group ◽  
Rare Earth Fluoride ◽  
Earth Fluoride ◽  
Structure Determinations ◽  
New Compounds ◽  
Rare Earth Fluorides

The new rare-earth fluoride borates RE2(BO3)F3 (RE=Tb, Dy, Ho) were synthesized under highpressure/ high-temperature conditions of 1:5 GPa=1200 °C for Tb2(BO3)F3 and 3:0 GPa=900 °C for Dy2(BO3)F3 and Ho2(BO3)F3 in a Walker-type multianvil apparatus from the corresponding rareearth sesquioxides, rare-earth fluorides, and boron oxide. The single-crystal structure determinations revealed that the new compounds are isotypic to the known rare-earth fluoride borate Gd2(BO3)F3. The new rare-earth fluoride borates crystallize in the monoclinic space group P21/c (Z = 8) with the lattice parameters a=16:296(3), b=6:197(2), c=8:338(2) Å , b =93:58(3)° for Tb2(BO3)F3, a= 16:225(3), b = 6:160(2), c = 8:307(2) Å , b = 93:64(3)° for Dy2(BO3)F3, and a = 16:189(3), b = 6:124(2), c = 8:282(2) Å , β= 93:69(3)° for Ho2(BO3)F3. The four crystallographically different rare-earth cations (CN=9) are surrounded by oxygen and fluoride anions. All boron atoms form isolated trigonal-planar [BO3]3- groups. The six crystallographically different fluoride anions are in a nearly planar coordination by three rare-earth cations.

scholarly journals Crystal Structure of (Ba1-xLax)2In2O5+x and Its Oxide Ion Conductivity

2000 ◽  
Vol 68 (6) ◽  
pp. 531-533 ◽  
Author(s):  
Yoshiharu UCHIMOTO ◽  
Takeshi YAO ◽  
Hiromitsu TAKAGI ◽  
Toru INAGAKI ◽  
Hiroyuki YOSHIDA
Keyword(s):  
Crystal Structure ◽  
Ion Conductivity ◽  
Oxide Ion Conductivity ◽  
Oxide Ion

Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals

Nanoscale ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 4523-4530 ◽  
Author(s):  
Keishi Tsukiyama ◽  
Mihiro Takasaki ◽  
Naoto Kitamura ◽  
Yasushi Idemoto ◽  
Yuya Oaki ◽  
...  
Keyword(s):  
Rare Earth ◽  
Solid State ◽  
Self Assembly ◽  
Ion Conductivity ◽  
Solid State Electrolyte ◽  
Oxide Ion Conductivity ◽  
Ion Conductivities ◽  
Evaporation Induced Self Assembly ◽  
Rare Earth Doped ◽  
Oxide Ion

Enhanced oxide-ion conductivities were observed on mesocrystalline structures that were produced by evaporation-induced self-assembly of rare earth-doped CeO2 nanocubes 4–5 nm in size.

Single crystal growth and oxide ion conductivity of apatite-type rare-earth silicates

2004 ◽  
Vol 174 (1-4) ◽  
pp. 73-80 ◽  
Author(s):  
M HIGUCHI ◽  
Y MASUBUCHI ◽  
S NAKAYAMA ◽  
S KIKKAWA ◽  
K KODAIRA
Keyword(s):  
Rare Earth ◽  
Crystal Growth ◽  
Single Crystal ◽  
Single Crystal Growth ◽  
Ion Conductivity ◽  
Oxide Ion Conductivity ◽  
Oxide Ion ◽  
Apatite Type

Effect of Mg substitution on crystal structure and oxide-ion conductivity of apatite-type lanthanum silicates

2010 ◽  
Vol 181 (21-22) ◽  
pp. 1024-1032 ◽  
Author(s):  
Tomohiro Kinoshita ◽  
Tomoyuki Iwata ◽  
Emilie Béchade ◽  
Olivier Masson ◽  
Isabelle Julien ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Ion Conductivity ◽  
Oxide Ion Conductivity ◽  
Lanthanum Silicates ◽  
Mg Substitution ◽  
Oxide Ion ◽  
Apatite Type

scholarly journals Formation of C-type rare earth structures in the Ce1-xNdxO2-δ system: a factor in the decrease in oxide-ion conductivity

2009 ◽  
Vol 117 (1372) ◽  
pp. 1306-1310 ◽  
Author(s):  
Takeshi HAGIWARA ◽  
Zuiho KYO ◽  
Akitaka MANABE ◽  
Hiroshi YAMAMURA ◽  
Katsuhiro NOMURA
Keyword(s):  
Rare Earth ◽  
Ion Conductivity ◽  
Oxide Ion Conductivity ◽  
System A ◽  
Earth Structures ◽  
Oxide Ion
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