# Fileset

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

## Creator

Seoyoung Lee, Sung Keun Lee

## Rights

[Creative Commons BY Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/)

## Other metadata

[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)

## Fulltext

Structural Evolution of Li Environments in Mixed-Cation Silicate Glasses under Crystallization by Solid-State NMR Spectroscopy Seoyoung Lee1 & Sung Keun Lee1,2 1School of Earth and Environmental Sciences, Seoul National University, Seoul 08826, Korea 2Institute of Applied Physics, Seoul National University, Seoul 08826, Korea Corresponding Author e-mail: 2seo0@snu.ac.kr 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 spectroscopy1,2). Nevertheless, systematic investigations into the composition-dependent mobility of Li and the structural evolution of Li environments during crystallization remain limited.  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 phases3) and quantification of crystallinity based on signal ratios. Crystalline fractions were modeled as a simple function for describing crystallization kinetics4). 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 functionality5). 1) S.Y. Park and S. K. Lee, J. Am. Ceram. Soc. 99, 3948 (2016).2) E. J. Kim, Y. H. Kim, and S. K. Lee, J. Phys. Chem. C. 123, 26608 (2019)3) S. K. Lee et al., Nat. Geosci. 10, 436 (2017)4) S. B. Ryu and S. K. Lee, J. Phys. Chem. Lett. 9, 150 (2018)5) See https://g2mat.snu.ac.kr/ for further details.MDI Young Scientist Award Silver Prizehttps://g2mat.snu.ac.kr/ アブストラクトブック_Oral表紙 アブストラクトブック_転送用 PNCS17_表紙 スライド 2 バインダー2 Abstracts_oral_0805 Abstracts_oral_0805 アブストラクト本_日程 Abstracts_oral_0805 アブストラクトブック_Oral_0805 アブストラクトブック_Oral_250729 アブストラクトブック_Oral_250729 アブストラクトブック_Oral_250729 アブストブックOral_250728 Oral目次 アブストラクトブック_Oral_250728 アブストラクトブック_Oral_250728 アブストラクトブック_oral C000024 C000104 アブストラクトブック アブストラクトブック アブストラクトブック アブストラクトブック C000160 C000185 C000186 アブストラクト_Oral セッション１ C000112 C000187 C000032 C000059 C000099 C000056 C000031 C000166 セッション２ C000128 C000004 C000132 C000102 C000064 C000167 C000029 C000005 C000041 C000098 C000143 C000071 セッション３ C000118 C000161 C000158 C000096 セッション４ C000110 C000026 C000157 C000039 C000085 C000072 C000019 C000122 セッション５ C000100 C000154 C000106 C000093 C000095 C000131 C000055 C000003 C000136 C000028 セッション６ セッション７ C000138 C000077 C000076 C000069 C000155 C000050 C000052 C000115 C000044 C000129 セッション８ C000105 C000149 C000058 C000007 C000009 C000006 C000030 C000107 C000159 C000018 C000141 C000145 C000156 C000168 C000140 C000120 C000103 C000068 C000123 C000172 C000151 セッション９ C000034 C000144 C000135 C000088 C000087 C000080 C000152 C000094 C000027 C000117 C000061 バインダー10 C000111 C000153 C000022 C000047 C000124 C000054 C000116 C000092 C000184 C000020 C000078 C000046 C000045 C000051 C000043 セッション１１ C000164 C000114 C000040 C000113 C000025 C000053 C000057 C000074 C000013 セッション１2 C000142 C000014 C000035 C000173 C000182 C000188 C000012 C000163 C000060 C000042 C000066 C000180 Abstracts_poster_NIMS.pdf アブストラクトブック_poster表紙 アブストラクトブック_転送用 PNCS17_表紙 スライド 2 アブストラクトブック_poster_250728 アブストラクトブック_poster_250728 アブストラクトブック_poster アブストラクトブック_poster アブストラクトブック_poster アブストラクトブック アブストラクトブック アブストラクトブック アブストラクトブック アブストラクト_Poster ポスターP01-P29 C000177 C000126 C000137 C000084 C000070 C000125 C000073 C000169 C000130 C000101 C000033 C000165 C000082 C000139 C000189 C000065 C000162 C000079 C000175 C000011 C000021 C000017 C000090 C000067 C000091 C000147 C000148 C000121 C000086 ポスターP30-P54 C000150 C000170 C000178 C000183 C000023 C000062 C000048 C000108 C000109 C000063 C000134 C000171 C000089 C000174 C000190 C000179 C000038 C000083 C000057 C000176 C000015 C000075 C000081 C000181 C000133