PlumX Metrics
Embed PlumX Metrics

Effect of V-doping on the structure and conductivity of garnet-type LiLaNbO

Ionics, ISSN: 1862-0760, Vol: 21, Issue: 2, Page: 373-379
2015
  • 7
    Citations
  • 0
    Usage
  • 29
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

Article Description

The effect of isovalent V substitution for Nb in LiLaNbO on the electrical conductivity properties of the garnet-type structure was investigated by various physical methods, including powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), and Li nuclear magnetic resonance (NMR) spectroscopy. Garnet-type metal oxides of the nominal chemical formula, LiLaNbVO (x = 0 – 0.25) were prepared by conventional solid-state method at elevated temperature in air. PXRD results showed that the cubic garnet-type structure with space group (s.g.) of Ia-3d was maintained, but several peaks attributed to secondary phase LaVO (s.g.P2/n) were also observed. SEM measurements indicate doping V for Nb improved particle-to-particle contact. The effect of V substitution for Nb in LiLaNbO on ionic conductivity was also studied by AC impedance spectroscopy. The total (bulk + grain boundary) conductivity gradually increased with V content up until x = 0.15 and decreased thereafter. The x = 0.15 showed the highest total conductivity of 6 × 10 S cm at room temperature, with the lowest activation energy of 0.37 eV.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know