Synthesis, structural characterization and ionic conductivity of NASICON-type Bax/2Li1-xTi2(PO4)3 (0.4 ≤ x ≤ 1) materials

R. Kahlaoui; K. Arbi Ghanmi; R. Jimenez; I. Sobrados; M. Mehnaoui; J. Sanz; R. Ternane

doi:10.1007/s11581-016-1898-4

Synthesis, structural characterization and ionic conductivity of NASICON-type Ba_x/2Li_1-xTi₂(PO₄)₃ (0.4 ≤ x ≤ 1) materials

R. Kahlaoui^*, K. Arbi Ghanmi, R. Jimenez, I. Sobrados, M. Mehnaoui, J. Sanz, R. Ternane

^*Corresponding author for this work

Materials and Environment

Research output: Contribution to journal › Article › Scientific › peer-review

12 Citations (Scopus)

Abstract

The NASICON series, with formula Ba_x/2Li_1-xTi₂(PO₄)₃ (0.4 ≤ x ≤ 1), has been prepared by solid-state reaction and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), Raman, nuclear magnetic resonance (NMR) and impedance spectroscopy (IS). XRD patterns of samples indicated the formation of single phases with rhombohedral structure (space group R-3c). The Rietveld analysis of XRD patterns was performed to deduce location of Li and Ba ions. FTIR, Raman, and NMR techniques showed the only presence of isolated PO₄ groups in analyzed phosphates. ³¹P MAS-NMR spectra were used to investigate Li and Ba distribution and ⁷Li MAS-NMR spectra to discriminated Li ions with different mobility in conduction paths. A maximum total conductivity of 2.5 × 10⁻⁷ S cm⁻¹ and a minimum activation energy of 0.47 eV were obtained at room temperature for Ba_0.3Li_0.4Ti₂(PO₄)₃ (x = 0.6).

Original language	English
Pages (from-to)	837–846
Number of pages	10
Journal	Ionics
Volume	23
Issue number	4
DOIs	https://doi.org/10.1007/s11581-016-1898-4
Publication status	Published - 2016

Keywords

Batteries
Ionic conductivity
NASICON structure
Solid-state reaction
Spectroscopy
XRD

Access to Document

10.1007/s11581-016-1898-4

Cite this

@article{859e18a965a44949b2696c45588bcd2c,

title = "Synthesis, structural characterization and ionic conductivity of NASICON-type Bax/2Li1-xTi2(PO4)3 (0.4 ≤ x ≤ 1) materials",

abstract = "The NASICON series, with formula Bax/2Li1-xTi2(PO4)3 (0.4 ≤ x ≤ 1), has been prepared by solid-state reaction and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), Raman, nuclear magnetic resonance (NMR) and impedance spectroscopy (IS). XRD patterns of samples indicated the formation of single phases with rhombohedral structure (space group R-3c). The Rietveld analysis of XRD patterns was performed to deduce location of Li and Ba ions. FTIR, Raman, and NMR techniques showed the only presence of isolated PO4 groups in analyzed phosphates. 31P MAS-NMR spectra were used to investigate Li and Ba distribution and 7Li MAS-NMR spectra to discriminated Li ions with different mobility in conduction paths. A maximum total conductivity of 2.5 × 10−7 S cm−1 and a minimum activation energy of 0.47 eV were obtained at room temperature for Ba0.3Li0.4Ti2(PO4)3 (x = 0.6).",

keywords = "Batteries, Ionic conductivity, NASICON structure, Solid-state reaction, Spectroscopy, XRD",

author = "R. Kahlaoui and {Arbi Ghanmi}, K. and R. Jimenez and I. Sobrados and M. Mehnaoui and J. Sanz and R. Ternane",

year = "2016",

doi = "10.1007/s11581-016-1898-4",

language = "English",

volume = "23",

pages = "837–846",

journal = "Ionics",

issn = "0947-7047",

publisher = "Institute for Ionics",

number = "4",

}

TY - JOUR

T1 - Synthesis, structural characterization and ionic conductivity of NASICON-type Bax/2Li1-xTi2(PO4)3 (0.4 ≤ x ≤ 1) materials

AU - Kahlaoui, R.

AU - Arbi Ghanmi, K.

AU - Jimenez, R.

AU - Sobrados, I.

AU - Mehnaoui, M.

AU - Sanz, J.

AU - Ternane, R.

PY - 2016

Y1 - 2016

N2 - The NASICON series, with formula Bax/2Li1-xTi2(PO4)3 (0.4 ≤ x ≤ 1), has been prepared by solid-state reaction and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), Raman, nuclear magnetic resonance (NMR) and impedance spectroscopy (IS). XRD patterns of samples indicated the formation of single phases with rhombohedral structure (space group R-3c). The Rietveld analysis of XRD patterns was performed to deduce location of Li and Ba ions. FTIR, Raman, and NMR techniques showed the only presence of isolated PO4 groups in analyzed phosphates. 31P MAS-NMR spectra were used to investigate Li and Ba distribution and 7Li MAS-NMR spectra to discriminated Li ions with different mobility in conduction paths. A maximum total conductivity of 2.5 × 10−7 S cm−1 and a minimum activation energy of 0.47 eV were obtained at room temperature for Ba0.3Li0.4Ti2(PO4)3 (x = 0.6).

AB - The NASICON series, with formula Bax/2Li1-xTi2(PO4)3 (0.4 ≤ x ≤ 1), has been prepared by solid-state reaction and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), Raman, nuclear magnetic resonance (NMR) and impedance spectroscopy (IS). XRD patterns of samples indicated the formation of single phases with rhombohedral structure (space group R-3c). The Rietveld analysis of XRD patterns was performed to deduce location of Li and Ba ions. FTIR, Raman, and NMR techniques showed the only presence of isolated PO4 groups in analyzed phosphates. 31P MAS-NMR spectra were used to investigate Li and Ba distribution and 7Li MAS-NMR spectra to discriminated Li ions with different mobility in conduction paths. A maximum total conductivity of 2.5 × 10−7 S cm−1 and a minimum activation energy of 0.47 eV were obtained at room temperature for Ba0.3Li0.4Ti2(PO4)3 (x = 0.6).

KW - Batteries

KW - Ionic conductivity

KW - NASICON structure

KW - Solid-state reaction

KW - Spectroscopy

KW - XRD

UR - http://www.scopus.com/inward/record.url?scp=84995380668&partnerID=8YFLogxK

U2 - 10.1007/s11581-016-1898-4

DO - 10.1007/s11581-016-1898-4

M3 - Article

AN - SCOPUS:84995380668

SN - 0947-7047

VL - 23

SP - 837

EP - 846

JO - Ionics

JF - Ionics

IS - 4

ER -

Synthesis, structural characterization and ionic conductivity of NASICON-type Ba_x/2Li_1-xTi₂(PO₄)₃ (0.4 ≤ x ≤ 1) materials

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this