Crystal chemistry and electrical conductivity of Ln2Eu2O3F6 (Ln: Nd, La)

Takashima, Masayuki; Yonezawa, Suguru; Kim, Jeo‐ho

doi:10.1016/j.jallcom.2004.12.077

Cited by 11 publications

(5 citation statements)

References 10 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Efficient oxide ion conductors Ln 4 O 3 F 6 and Nd 2 Eu 2 O 3 F 6 are obtained by hydrolysis of LnF 3 trifluorides in air at 500−1000 °C. 53 The reaction process is either continuous (Sr 2 MnGa(O,F) 6 54 ) or progresses by steps (Sr 2 TiO 3 F 2 , 55 LaSrMnO 4 F, 56 Ce 2 MnN 3 F 2−δ 57 ); surface only can be modified (fluorination of LiMn 2 O 4 58 ). The reactive gas can be prepared in situ.…”

Section: Synthesis Of Inorganic Metal Fluoridesmentioning

confidence: 99%

“…Oxide fluorides and a few nitride fluorides are prepared by gas–solid reactions: fluorination of the oxides or nitrides or hydrolysis of fluorides. Efficient oxide ion conductors Ln 4 O 3 F 6 and Nd 2 Eu 2 O 3 F 6 are obtained by hydrolysis of LnF 3 trifluorides in air at 500–1000 °C . The reaction process is either continuous (Sr 2 MnGa(O,F) 6 ) or progresses by steps (Sr 2 TiO 3 F 2 , LaSrMnO 4 F, Ce 2 MnN 3 F 2−δ ); surface only can be modified (fluorination of LiMn 2 O 4 ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Crystal Chemistry and Selected Physical Properties of Inorganic Fluorides and Oxide-Fluorides

2014

View full text Add to dashboard Cite

The stereochemistry of fluorides will be discussed in terms of dimensionality. This dimensionality, from 0D to 3D, is related to the connectivity of the building MX n m− units containing the metal M (M = aluminum, transition metal, or rare earth elements, X = F, O, N, S). These building units share eventually one, two, or three fluorine or oxygen atoms (corner, edge, or face of the MX n m− polyhedra) to form limited polyanions, infinite chains or layers, or a 3D network. Consequently, the structures will be presented according to their dimensionality, to their structural family, and to the nature of the building units. Imaginative associations of the building units will be eventually used to homogenize the structural descriptions. At the end of each section, some outstanding physical properties will be briefly presented and related to the structural data: ionic conductivity, superconductivity, ferroelasticity, and magnetism.The reader should be aware that the IUPAC nomenclature suggests "fluorido" instead of "fluoro" that is used all along this Review. All crystal structure projections were realized with Diamond software (Diamond -Crystal and Molecular Structure

show abstract

Section: Synthesis Of Inorganic Metal Fluoridesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Crystal Chemistry and Selected Physical Properties of Inorganic Fluorides and Oxide-Fluorides

2014

View full text Add to dashboard Cite

show abstract

“…The rare earth oxyfluorides Ln 2 Eu 2 O 3 F 6 (where Ln = La, Nd) have been reported to exhibit high oxide ion conduction in dry atmospheres. 73 For Ln = Nd, a conductivity of 2.0 S cm À1 at 500 1C was observed. A lower conductivity and a greater distortion of the monoclinic structure was observed for Ln = La.…”

Section: Oxide Ion Conductorsmentioning

confidence: 93%

Conducting solids

Kendrick

Slater

2007

Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem.

View full text Add to dashboard Cite

This Chapter reviews the literature reported during 2006 on conducting solids to include both ionic and electronic conductors. Particular emphasis is given to materials of relevance for Li ion battery and solid oxide fuel cell applications. HighlightsIn the area of Li ion batteries, highlights include the reports of high Li ion conductivity in crystalline polymers by Bruce et al., as well as further work by Gover et al. on novel vanadium phosphate based cathode materials. In the area of Solid Oxide Fuel Cells, highlights have included the reports of a new sulphur tolerant perovskite anode, Sr 2 MgMoO 6Àd , by Huang et al., and proton conduction in rare earth niobates/tantalates by Haugsrud et al.

show abstract

“…As a class of materials, solid inorganic fluorides possess a number of interesting properties, such as electron-acceptor behavior, a large optical transmission domain, high resistivity, anionic conductivity and photoluminescence [13][14][15][16][17][18]. Especially, ternary metal fluorides, possessing cubic perovskite structures with a chemical formula of AMnF 3 (A = K, NH 4 , Rb, Tl, Cs), have generated considerable interest due to their exceptional magnetic, piezoelectric, and photoluminescent properties [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%