Near-surface dynamics of the ionic liquid EMIM-Ac above and below the glass transition

Publikation: Bidrag til tidsskrift › Konferenceartikel › Forskning › fagfællebedømt

Standard

Near-surface dynamics of the ionic liquid EMIM-Ac above and below the glass transition. / Fujimoto, D; Karner, V L; Dehn, M H; Dunsiger, S R; Hemmingsen, L; Kiefl, R F; Mcfadden, R M L; Michal, C A; Morris, G D; Li, R; Pearson, M; Szunyogh, D; Thoeng, E; Ticknor, J O; Macfarlane, W A; Stachura, M.

I: Journal of Physics: Conference Series, Bind 2462, 012051, 2023.

Publikation: Bidrag til tidsskrift › Konferenceartikel › Forskning › fagfællebedømt

Harvard

Fujimoto, D, Karner, VL, Dehn, MH, Dunsiger, SR, Hemmingsen, L, Kiefl, RF, Mcfadden, RML, Michal, CA, Morris, GD, Li, R, Pearson, M, Szunyogh, D, Thoeng, E, Ticknor, JO, Macfarlane, WA & Stachura, M 2023, 'Near-surface dynamics of the ionic liquid EMIM-Ac above and below the glass transition', Journal of Physics: Conference Series, bind 2462, 012051. https://doi.org/10.1088/1742-6596/2462/1/012051

APA

Fujimoto, D., Karner, V. L., Dehn, M. H., Dunsiger, S. R., Hemmingsen, L., Kiefl, R. F., Mcfadden, R. M. L., Michal, C. A., Morris, G. D., Li, R., Pearson, M., Szunyogh, D., Thoeng, E., Ticknor, J. O., Macfarlane, W. A., & Stachura, M. (2023). Near-surface dynamics of the ionic liquid EMIM-Ac above and below the glass transition. Journal of Physics: Conference Series, 2462, [012051]. https://doi.org/10.1088/1742-6596/2462/1/012051

Vancouver

Fujimoto D, Karner VL, Dehn MH, Dunsiger SR, Hemmingsen L, Kiefl RF o.a. Near-surface dynamics of the ionic liquid EMIM-Ac above and below the glass transition. Journal of Physics: Conference Series. 2023;2462. 012051. https://doi.org/10.1088/1742-6596/2462/1/012051

Author

Fujimoto, D ; Karner, V L ; Dehn, M H ; Dunsiger, S R ; Hemmingsen, L ; Kiefl, R F ; Mcfadden, R M L ; Michal, C A ; Morris, G D ; Li, R ; Pearson, M ; Szunyogh, D ; Thoeng, E ; Ticknor, J O ; Macfarlane, W A ; Stachura, M. / Near-surface dynamics of the ionic liquid EMIM-Ac above and below the glass transition. I: Journal of Physics: Conference Series. 2023 ; Bind 2462.

Bibtex

@inproceedings{51d64a033b3f47a0b30c71e32b7929ed,
title = "Near-surface dynamics of the ionic liquid EMIM-Ac above and below the glass transition",
abstract = "In our prior work, we showed that β-detected nuclear magnetic resonance (β-NMR) was a good probe of bulk room temperature ionic liquid (RTIL) dynamics and dynamic heterogeneity. We now investigate how the surface modifies these properties, presenting the first depth-resolved β-NMR measurements in 1-ethyl-3-methylimidazolium acetate as a liquid, supercooled liquid, and glass. This interfacial region is important for understanding how constrained dimensionality affects dynamics. We show that both the surface and the glass transition have a large impact on molecular dynamics, which in many aspects differs greatly from our expectations based on polymer glasses. For example, in the glassy phase the surface dynamics appear to be faster than in the bulk (i.e., liquid-like), yet just as heterogeneous (i.e., glass-like).",
author = "D Fujimoto and Karner, {V L} and Dehn, {M H} and Dunsiger, {S R} and L Hemmingsen and Kiefl, {R F} and Mcfadden, {R M L} and Michal, {C A} and Morris, {G D} and R Li and M Pearson and D Szunyogh and E Thoeng and Ticknor, {J O} and Macfarlane, {W A} and M Stachura",
year = "2023",
doi = "10.1088/1742-6596/2462/1/012051",
language = "English",
volume = "2462",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "Institute of Physics Publishing Ltd",

}

RIS

TY - GEN

T1 - Near-surface dynamics of the ionic liquid EMIM-Ac above and below the glass transition

AU - Fujimoto, D

AU - Karner, V L

AU - Dehn, M H

AU - Dunsiger, S R

AU - Hemmingsen, L

AU - Kiefl, R F

AU - Mcfadden, R M L

AU - Michal, C A

AU - Morris, G D

AU - Li, R

AU - Pearson, M

AU - Szunyogh, D

AU - Thoeng, E

AU - Ticknor, J O

AU - Macfarlane, W A

AU - Stachura, M

PY - 2023

Y1 - 2023

N2 - In our prior work, we showed that β-detected nuclear magnetic resonance (β-NMR) was a good probe of bulk room temperature ionic liquid (RTIL) dynamics and dynamic heterogeneity. We now investigate how the surface modifies these properties, presenting the first depth-resolved β-NMR measurements in 1-ethyl-3-methylimidazolium acetate as a liquid, supercooled liquid, and glass. This interfacial region is important for understanding how constrained dimensionality affects dynamics. We show that both the surface and the glass transition have a large impact on molecular dynamics, which in many aspects differs greatly from our expectations based on polymer glasses. For example, in the glassy phase the surface dynamics appear to be faster than in the bulk (i.e., liquid-like), yet just as heterogeneous (i.e., glass-like).

AB - In our prior work, we showed that β-detected nuclear magnetic resonance (β-NMR) was a good probe of bulk room temperature ionic liquid (RTIL) dynamics and dynamic heterogeneity. We now investigate how the surface modifies these properties, presenting the first depth-resolved β-NMR measurements in 1-ethyl-3-methylimidazolium acetate as a liquid, supercooled liquid, and glass. This interfacial region is important for understanding how constrained dimensionality affects dynamics. We show that both the surface and the glass transition have a large impact on molecular dynamics, which in many aspects differs greatly from our expectations based on polymer glasses. For example, in the glassy phase the surface dynamics appear to be faster than in the bulk (i.e., liquid-like), yet just as heterogeneous (i.e., glass-like).

U2 - 10.1088/1742-6596/2462/1/012051

DO - 10.1088/1742-6596/2462/1/012051

M3 - Conference article

VL - 2462

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

M1 - 012051

ER -

ID: 342124236