# Structural Evolution of Li Environments in Mixed-Cation Silicate Glasses under Crystallization by Solid-State NMR Spectroscopy

https://mdr.nims.go.jp/datasets/410a9f53-9b19-42a4-84de-2e421f9bb6a3

## File

- [Abstracts_Lee.pdf](https://mdr.nims.go.jp/filesets/38e4b075-6e81-4d73-86cb-84c80dd23963/download) ([Detail](https://mdr.nims.go.jp/filesets/38e4b075-6e81-4d73-86cb-84c80dd23963.md))

## Id

410a9f53-9b19-42a4-84de-2e421f9bb6a3

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## Visibility

open_to_public

## State

published

## Created at

2025-09-25T06:20:57.178152Z

## Updated at

2025-09-25T23:30:30.508235Z

## Published at

2025-09-25T23:18:12.759089Z

## Doi

https://doi.org/10.48505/nims.5782

## First published url



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## Resource type

conference_poster

## Manuscript type

na

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## Title

- title: Structural Evolution of Li Environments in Mixed-Cation Silicate Glasses
    under Crystallization by Solid-State NMR Spectroscopy
  title_type: original
  lang: en

## Description

- description: "Lithium is among the critical elements with strong applications in
    the energy-storing materials industry where a crucial demand for an enhanced and
    efficient transport of Li in non-crystalline oxides has recently been proposed.
    In particular, exploring the distribution and mobility of Li in silicate glasses
    is fundamental to elucidating crystallization kinetics and thermodynamic properties
    in Li-bearing silicate materials. Solid-state nuclear magnetic resonance (NMR)
    spectroscopy provides quantitative and bulk-sensitive insights into the local
    atomic environments around specific nuclei in amorphous materials. Previous studies
    have revealed the exceptional mobility of Li in silicate glasses under various
    compositional and pressure conditions by solid-state NMR spectroscopy. Nevertheless,
    systematic investigations into the composition-dependent mobility of Li and the
    structural evolution of Li environments during crystallization remain limited.\r\n
    \ In this study, we explored the local environments of Li in silicate glasses
    and crystallized glasses using 6Li MAS NMR spectroscopy. Li-bearing silicate samples
    were prepared by quenching from ternary Li-alkali or alkaline-earth mixed silicate
    melts, with variations in cation compositions. The significantly longer spin-lattice
    relaxation times of crystalline phases, compared to amorphous phases, enabled
    the resolution of phases and quantification of crystallinity based on signal ratios.
    Crystalline fractions were modeled as a simple function for describing crystallization
    kinetics. The 6Li MAS NMR results also revealed that both the peak position and
    line shape of the Li signals varied depending on the glass composition, particularly
    the type of network modifiers. Glasses containing smaller ionic radius differences
    relative to Li exhibited enhanced random cation mixing in glass structure, leading
    to an increase in cation mobility, consistent with previous studies on nature
    of cation mixing and ordering. These findings highlight the significant impact
    of compositional tuning on Li mobility and local structure in silicate glasses,
    contributing to the structural behavior of Li-bearing amorphous materials and
    their advanced functionality."
  description_type: abstract
  lang: en

## Creator

- name: Seoyoung Lee
  role: author
  organization: Seoul National University
  department: School of Earth and Environmental Sciences
- name: Sung Keun Lee
  role: author
  organization: Seoul National University
  department: School of Earth and Environmental Sciences

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## Publisher

organization: National Institute for Materials Science (NIMS)

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## Keyword

- subject: Silicate glass
  schema: not_defined
- subject: Solid-state nuclear magnetic resonance
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

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## Data origin

- data_origin_type: other

## Embargo



## Journal



## Conference

name: The 17th International Conference on the Physics of Non-Crystalline Solids (PNCS17)
identifier: https://amorphous.tf.chiba-u.jp/pncs2025/

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## Specimen



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## Fileset

- id: 38e4b075-6e81-4d73-86cb-84c80dd23963
  filename: Abstracts_Lee.pdf
  content_type: application/pdf
  size: 497150
  md5: b53d0c07abd777d2facd8d4b13949994

## Thumbnail

fileset_id: 38e4b075-6e81-4d73-86cb-84c80dd23963
filename: Abstracts_Lee.pdf