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Dissertation
Raman spectroscopy of MXenes beyond Ti₃C₂T_x: characterization and applications
Doctor of Philosophy (Ph.D.), Drexel University
15 Jun 2025
DOI:
https://doi.org/10.17918/00011108
Abstract
The MXene family has been rapidly expanding, with over 70 compositions synthesized to date, and hundreds of structures predicted with varying transition metals, surface terminations, and carbon/nitrogen contents. While Ti₃C₂T_x is the first and the most explored MXene, the search for novelty drew attention to other MXenes that would outperform Ti₃C₂T_x in various applications, such as electromagnetic interference (EMI) shielding, energy storage, catalysis, and biomedical applications. The performance of a device cannot be optimized without establishing the structure-property-performance relationship, which requires adequate characterization. Within the field of 2D materials, Raman spectroscopy became one of the most impactful and widely used tools: it is fast, non-destructive, offers high resolution, provides structural and electronic information, and is usable at both small-scale research and large-scale manufacturing. The goal of this thesis is to explore Raman spectroscopy characterization of MXenes beyond Ti₃C₂T_x and MXene-based systems, understanding how the structure and composition of the materials affect the vibrational spectra and elucidating charge storage mechanisms of electrochemical cells in situ. For that, experimental and computational data are required. Additionally, the application of MXenes as surface-enhanced Raman spectroscopy (SERS) substrates for sensing is explored. These findings will expand the usage of Raman spectroscopy by the MXene community for the characterization of MXenes. Once the strong background of the Raman spectroscopy technique is established, better, more reliable MXene devices can be engineered.
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Details
- Title
- Raman spectroscopy of MXenes beyond Ti₃C₂T_x
- Creators
- Kateryna Shevchuk
- Contributors
- Yury Gogotsi (Advisor)Steven J. May (Advisor)
- Awarding Institution
- Drexel University
- Degree Awarded
- Doctor of Philosophy (Ph.D.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Number of pages
- xxii, 180 pages
- Resource Type
- Dissertation
- Language
- English
- Academic Unit
- Materials (Science and) Engineering (Metallurgical Engineering) [Historical]; College of Engineering (1970-2026); Drexel University
- Other Identifier
- 991022062816704721