Crystal Structure of a Layered Perovskite Niobate KCa2Nb3O10

Fukuoka, Hiroshi; Isami, Toshiyuki; Yamanaka, Shōji

doi:10.1006/jssc.2000.8619

Cited by 77 publications

(48 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From these results, it may be thought that the formation of octahedral coordination around the Na cations is a driving force for the hydration of sodium-exchanged n"3 D-J phases. For the anhydrous NaLa Ti TaO , the interlayer Na cations are located in the tetrahedral sites coordinated by four terminal oxygens, corresponding to the -type NaCa Nb O (20).…”

Section: Environment Of Na Cations In Nalamentioning

confidence: 99%

Structural Characterization of New Layered Perovskites MLa2Ti2TaO10 (M=Cs, Rb) and NaLa2Ti2TaO10 ·xH2O (x=2, 0.9, 0)

Hong¹,

Han²,

Kim³

2001

Journal of Solid State Chemistry

View full text Add to dashboard Cite

Section: Environment Of Na Cations In Nalamentioning

confidence: 99%

Structural Characterization of New Layered Perovskites MLa2Ti2TaO10 (M=Cs, Rb) and NaLa2Ti2TaO10 ·xH2O (x=2, 0.9, 0)

Hong¹,

Han²,

Kim³

2001

Journal of Solid State Chemistry

View full text Add to dashboard Cite

“…[21] On the other hand, the K ion with a medium size generally adopts a trigonal prismatic geometry. [22] KCa 2 Nb 3 O 10 and HCa 2 Nb 3 O 10 ·1.5H 2 O are lamellar DionJacobson compounds that consist of perovskite slabs interleaved by potassium cations and hydrated protons. [2,19,23] Their low charge density and low interlayer covalency, relative to the structurally related Ruddlesden-Popper [24] and Aurivillius [25] phases, make them readily amenable to ionexchange, intercalation and exfoliation reactions.…”

mentioning

confidence: 99%

Designed Reversible Alkylamine Intercalation–Deintercalation in the Layered Perovskite‐Type Oxide KCa₂Nb₃O₁₀

et al. 2008

View full text Add to dashboard Cite

Reactions have been designed to verify the reversibility of butylamine intercalation–deintercalation in the layered perovskite‐type oxide KCa2Nb3O10. The reactions include ion exchange to form HCa2Nb3O10·1.5H2O, butylamine intercalation for producing C4H9NH3Ca2Nb3O10, transformation of C4H9NH3Ca2Nb3O10 into HCONH3Ca2Nb3O10 by formamide substitution and conversion of HCONH3Ca2Nb3O10 into HCa2Nb3O10·1.5H2O again by ion exchange. The complete reaction cycles were monitored by XRD, Raman spectroscopy, thermogravimetric (TG) and elemental analysis, and the resulting information was used to propose the structure evolution and to determine the organic components of the products. The well‐matched powder X‐ray diffraction (XRD) patterns and Raman spectra between the initial and recovered protonated materials confirmed that they have identical structural features of a protonated triple‐layered perovskite. The C, H and N elemental analysis results and TG data indicate that the regenerated layered perovskite‐type oxides also have a high capacity for alkylamine intercalation. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

show abstract

“…3a, a comparison of the XRD patterns of both oxide DJ phase and oxynitride RP phase confirms the topochemical interconversion during ammonolysis. While KCN presented an orthorhombic symmetry with Cmcm space group [10,23], KCN-N belongs to P4/mmm space group [7].…”

Section: Resultsmentioning

confidence: 99%

Preparation of niobium based oxynitride nanosheets by exfoliation of Ruddlesden-Popper phase precursor

Maia

Cheviré

Demange

et al. 2016

Solid State Sciences

View full text Add to dashboard Cite

To cite this version:Rietveld refinement of X-ray powder diffraction data in space group P4/mmm and considering a two-phase mixture, due to the difference in the degree of hydration, with a = 3.894(2) Å and c = 17.90(8) Å for the most hydrated phase and a = 3.927(6) and c = 17.09 (2) for the less one. Optical band gaps were measured by diffuse reflectance UV-Vis indicating a red shift of Eg to the visible region. The oxynitride layered perovskite was then protonated and exfoliated into nanosheets. TEM images and SAED patterns of the nanosheets proved that exfoliation was successful, showing lattice parameters quite compatible with the Rietveld refinement.

show abstract

Crystal Structure of a Layered Perovskite Niobate KCa2Nb3O10

Cited by 77 publications

References 11 publications

Structural Characterization of New Layered Perovskites MLa2Ti2TaO10 (M=Cs, Rb) and NaLa2Ti2TaO10 ·xH2O (x=2, 0.9, 0)

Structural Characterization of New Layered Perovskites MLa2Ti2TaO10 (M=Cs, Rb) and NaLa2Ti2TaO10 ·xH2O (x=2, 0.9, 0)

Designed Reversible Alkylamine Intercalation–Deintercalation in the Layered Perovskite‐Type Oxide KCa₂Nb₃O₁₀

Preparation of niobium based oxynitride nanosheets by exfoliation of Ruddlesden-Popper phase precursor

Contact Info

Product

Resources

About

Crystal Structure of a Layered Perovskite Niobate KCa2Nb3O10

Cited by 77 publications

References 11 publications

Structural Characterization of New Layered Perovskites MLa2Ti2TaO10 (M=Cs, Rb) and NaLa2Ti2TaO10 ·xH2O (x=2, 0.9, 0)

Structural Characterization of New Layered Perovskites MLa2Ti2TaO10 (M=Cs, Rb) and NaLa2Ti2TaO10 ·xH2O (x=2, 0.9, 0)

Designed Reversible Alkylamine Intercalation–Deintercalation in the Layered Perovskite‐Type Oxide KCa2Nb3O10

Preparation of niobium based oxynitride nanosheets by exfoliation of Ruddlesden-Popper phase precursor

Contact Info

Product

Resources

About

Designed Reversible Alkylamine Intercalation–Deintercalation in the Layered Perovskite‐Type Oxide KCa₂Nb₃O₁₀