Journal article
Alkylammonium Cation Intercalation into Ti3C2 (MXene): Effects on Properties and Ion-Exchange Capacity Estimation
Chemistry of materials, v 29(3), pp 1099-1106
14 Feb 2017
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Ti3C2Tx 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 Ti3C2 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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Details
- Title
- Alkylammonium Cation Intercalation into Ti3C2 (MXene): Effects on Properties and Ion-Exchange Capacity Estimation
- Creators
- Michael Ghidiu - Drexel UniversitySankalp Kota - Drexel UniversityJoseph Halim - Linköping UniversityAlexander W. Sherwood - Drexel UniversityNils Nedfors - Linköping UniversityJohanna Rosen - Linköping UniversityVadym N. Mochalin - Missouri University of Science and TechnologyMichel W. Barsoum - Drexel University
- Publication Details
- Chemistry of materials, v 29(3), pp 1099-1106
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 8
- Grant note
- 283036-3304 / National Science Foundation; National Science Foundation (NSF) Swedish Foundation for Strategic Research (SSF) through the synergy grant FUNCASE DMR-1310245 / U.S. National Science Foundation; National Science Foundation (NSF) Knut and Alice Wallenberg (KAW) Foundation; Knut & Alice Wallenberg Foundation
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000394924100027
- Scopus ID
- 2-s2.0-85012884814
- Other Identifier
- 991019168015404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary