Size particle effects on lithium insertion into Sn-doped TiO2 anatase

L. Aldon, Pierre Kubiak, A. Picard, J. C. Jumas, J. Olivier-Fourcade

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

Lithium insertion into Sn-doped TiO2 anatase was studied in order to clarify the mechanism responsible for the first plateau observed at 1.75 V vs Li. One of the other aims of this study was to get deeper insight into the process responsible for the appearance of a first domain observed at a small amount of lithium (before the plateau) and a third domain between 1.7 and 1.2 V (after the plateau). Pure and Sn-substituted anatase were synthesized by several synthetic methods with different precursors and solvents. These materials are expected to have different electrochemical properties because crystallite size modifies the Li-insertion process. Their electrochemical behavior is discussed in order to establish a relationship between the materials properties and the electrochemical performances. Three processes have been identified from both X-ray diffraction and 119Sn Mössbauer spectroscopy: (i) topotactic insertion into the Li-poor compound Li xTiO2, with the x value depending on the particle size; (ii) a two-phase system mechanism leading to the phase transition Li xTiO2 (Anatase, I41/amd) → Li yTiO2 (orthorhombic distortion, Imma); and (iii) another topotactic insertion into the Li-rich compound LiyTiO2. Crystallite size governs the topotactic mechanism but does not improve the overall electrochemical capacity of the material.

Original languageEnglish
Pages (from-to)1401-1406
Number of pages6
JournalChemistry of Materials
Volume18
Issue number6
DOIs
Publication statusPublished - 21 Mar 2006
Externally publishedYes

Fingerprint

Lithium
Titanium dioxide
Particle size
Crystallite size
Electrochemical properties
Materials properties
Phase transitions
Spectroscopy
X ray diffraction
titanium dioxide

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

Cite this

Size particle effects on lithium insertion into Sn-doped TiO2 anatase. / Aldon, L.; Kubiak, Pierre; Picard, A.; Jumas, J. C.; Olivier-Fourcade, J.

In: Chemistry of Materials, Vol. 18, No. 6, 21.03.2006, p. 1401-1406.

Research output: Contribution to journalArticle

Aldon, L, Kubiak, P, Picard, A, Jumas, JC & Olivier-Fourcade, J 2006, 'Size particle effects on lithium insertion into Sn-doped TiO2 anatase', Chemistry of Materials, vol. 18, no. 6, pp. 1401-1406. https://doi.org/10.1021/cm051445v
Aldon, L. ; Kubiak, Pierre ; Picard, A. ; Jumas, J. C. ; Olivier-Fourcade, J. / Size particle effects on lithium insertion into Sn-doped TiO2 anatase. In: Chemistry of Materials. 2006 ; Vol. 18, No. 6. pp. 1401-1406.
@article{90343465c0a54b849a974087d8b59763,
title = "Size particle effects on lithium insertion into Sn-doped TiO2 anatase",
abstract = "Lithium insertion into Sn-doped TiO2 anatase was studied in order to clarify the mechanism responsible for the first plateau observed at 1.75 V vs Li. One of the other aims of this study was to get deeper insight into the process responsible for the appearance of a first domain observed at a small amount of lithium (before the plateau) and a third domain between 1.7 and 1.2 V (after the plateau). Pure and Sn-substituted anatase were synthesized by several synthetic methods with different precursors and solvents. These materials are expected to have different electrochemical properties because crystallite size modifies the Li-insertion process. Their electrochemical behavior is discussed in order to establish a relationship between the materials properties and the electrochemical performances. Three processes have been identified from both X-ray diffraction and 119Sn M{\"o}ssbauer spectroscopy: (i) topotactic insertion into the Li-poor compound Li xTiO2, with the x value depending on the particle size; (ii) a two-phase system mechanism leading to the phase transition Li xTiO2 (Anatase, I41/amd) → Li yTiO2 (orthorhombic distortion, Imma); and (iii) another topotactic insertion into the Li-rich compound LiyTiO2. Crystallite size governs the topotactic mechanism but does not improve the overall electrochemical capacity of the material.",
author = "L. Aldon and Pierre Kubiak and A. Picard and Jumas, {J. C.} and J. Olivier-Fourcade",
year = "2006",
month = "3",
day = "21",
doi = "10.1021/cm051445v",
language = "English",
volume = "18",
pages = "1401--1406",
journal = "Chemistry of Materials",
issn = "0897-4756",
publisher = "American Chemical Society",
number = "6",

}

TY - JOUR

T1 - Size particle effects on lithium insertion into Sn-doped TiO2 anatase

AU - Aldon, L.

AU - Kubiak, Pierre

AU - Picard, A.

AU - Jumas, J. C.

AU - Olivier-Fourcade, J.

PY - 2006/3/21

Y1 - 2006/3/21

N2 - Lithium insertion into Sn-doped TiO2 anatase was studied in order to clarify the mechanism responsible for the first plateau observed at 1.75 V vs Li. One of the other aims of this study was to get deeper insight into the process responsible for the appearance of a first domain observed at a small amount of lithium (before the plateau) and a third domain between 1.7 and 1.2 V (after the plateau). Pure and Sn-substituted anatase were synthesized by several synthetic methods with different precursors and solvents. These materials are expected to have different electrochemical properties because crystallite size modifies the Li-insertion process. Their electrochemical behavior is discussed in order to establish a relationship between the materials properties and the electrochemical performances. Three processes have been identified from both X-ray diffraction and 119Sn Mössbauer spectroscopy: (i) topotactic insertion into the Li-poor compound Li xTiO2, with the x value depending on the particle size; (ii) a two-phase system mechanism leading to the phase transition Li xTiO2 (Anatase, I41/amd) → Li yTiO2 (orthorhombic distortion, Imma); and (iii) another topotactic insertion into the Li-rich compound LiyTiO2. Crystallite size governs the topotactic mechanism but does not improve the overall electrochemical capacity of the material.

AB - Lithium insertion into Sn-doped TiO2 anatase was studied in order to clarify the mechanism responsible for the first plateau observed at 1.75 V vs Li. One of the other aims of this study was to get deeper insight into the process responsible for the appearance of a first domain observed at a small amount of lithium (before the plateau) and a third domain between 1.7 and 1.2 V (after the plateau). Pure and Sn-substituted anatase were synthesized by several synthetic methods with different precursors and solvents. These materials are expected to have different electrochemical properties because crystallite size modifies the Li-insertion process. Their electrochemical behavior is discussed in order to establish a relationship between the materials properties and the electrochemical performances. Three processes have been identified from both X-ray diffraction and 119Sn Mössbauer spectroscopy: (i) topotactic insertion into the Li-poor compound Li xTiO2, with the x value depending on the particle size; (ii) a two-phase system mechanism leading to the phase transition Li xTiO2 (Anatase, I41/amd) → Li yTiO2 (orthorhombic distortion, Imma); and (iii) another topotactic insertion into the Li-rich compound LiyTiO2. Crystallite size governs the topotactic mechanism but does not improve the overall electrochemical capacity of the material.

UR - http://www.scopus.com/inward/record.url?scp=33645536469&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645536469&partnerID=8YFLogxK

U2 - 10.1021/cm051445v

DO - 10.1021/cm051445v

M3 - Article

VL - 18

SP - 1401

EP - 1406

JO - Chemistry of Materials

JF - Chemistry of Materials

SN - 0897-4756

IS - 6

ER -