Na+/Li+-ionic conductivity in Fe2Na2K[Li3Si12O30]

Röska, Benedikt; Akter, Ismot; Hoelzel, Markus und Park, Sohyun (18. Mai 2018): Na+/Li+-ionic conductivity in Fe2Na2K[Li3Si12O30]. In: Journal of Solid State Chemistry, Bd. 264: S. 98-107

Abstract

A sugilite-type double 6-membered ring (D6MR) silicate, Fe2Na2K[Li3Si12O30] could be obtained for the first time under mild hydrothermal conditions. Impedance spectra revealed a bulk conductivity of 1.2 × 10−5 Scm−1 at 923 K. Hopping pathways of Li+ and Na+ were indicated in difference Fourier (ΔF) maps parallel to the D6MRs network using neutron powder diffraction at 298–1123 K. The current study presents a promising prototype for combined 2-dimensional Li+/Na+-ionic conductors with crystal-chemical flexibility and thermally high stability.

• Dokumententyp: Zeitschriftenartikel
• Publikationsform: Publisher's Version
• Keywords: Combined ionic conductivity; Neutron powder diffraction; Hydrothermal synthesis; Impedance spectroscopy; Sugilite
• Fakultät: Geowissenschaften > Department für Geo- und Umweltwissenschaften > Mineralogie, Petrologie und Geochemie ; Geowissenschaften > Department für Geo- und Umweltwissenschaften > Kristallographie und Materialwissenschaft
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik ; 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften, Geologie
• ISSN: 0022-4596
• Sprache: Englisch