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Alkylammonium Cation Intercalation into Ti3C2 (MXene): Effects on Properties and Ion-Exchange Capacity Estimation
Abstract
Ti 3 C 2 T x MXene intercalated with Li + ions was produced and ion-exchanged with a series of trimethylalkylammonium (AA) cations of increasing alkyl chain length. A discontinuous expansion in the MXene layer spacing was observed, attributed to complete packing of the interlayer space at a critical chain length. The latter was used to estimate the number of cations per Ti 3 C 2 formula unit, which was found to be in good agreement with a similar quantification obtained from X-ray photoelectron spectroscopy, energy-dispersive spectroscopy, and elemental analysis. The system was also modeled using density functional theory and molecular dynamics, arriving at cation concentrations in the same range. The intercalated AA cations led to tunable increases in resistivity of the normally highly electrically conductive MXene and were investigated as interlayer pillars in electrochemical capacitors.
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Citations
Cited by
Raman Spectroscopy Analysis of the Structure and Surface Chemistry of Ti3C2T x MXene
Sarycheva, A., & Gogotsi, Y. (2020) · Chemistry of Materials · doi:10.1021/acs.chemmater.0c00359 · Cited by 1,467
Jiang, X., Kuklin, A. V., Baev, A., Ge, Y., Ågren, H., Zhang, H., & Prasad, P. N. (2020) · Physics Reports · doi:10.1016/j.physrep.2019.12.006 · Cited by 914
MXenes: An Introduction of Their Synthesis, Select Properties, and Applications
Verger, L., Natu, V., Carey, M., & Barsoum, M. W. (2019) · Trends in Chemistry · doi:10.1016/j.trechm.2019.04.006 · Cited by 499
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Metadata
- Authors
- Ghidiu, M., Kota, S., Halim, J., Sherwood, A. W., Nedfors, N., Rosen, J., Mochalin, V. N., & Barsoum, M. W.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-01-27
- Volume
- 29
- Issue
- 3
- Pages
- 1099-1106
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2568650064
- Cited by
- 257
- References
- 0
- FWCI
- 8.58
- Type
- journal article
- Language
- en
- Open access
- closed
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- Ghidiu, M., Kota, S., Halim, J., Sherwood, A. W., Nedfors, N., Rosen, J., Mochalin, V. N., & Barsoum, M. W. (2017). Alkylammonium Cation Intercalation into Ti3C2 (MXene): Effects on Properties and Ion-Exchange Capacity Estimation. Chemistry of Materials. https://doi.org/10.1021/acs.chemmater.6b04234
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