Thesis
MXene/fullerenol composites: synthesis, properties, and characterization
Master of Science (M.S.), Drexel University
Jun 2023
DOI:
https://doi.org/10.17918/00001792
Abstract
Transition metal carbides, nitrides, and carbonitrides (also known as MXenes) are a novel class of 2D materials discovered at Drexel University in 2011. These materials are produced by selective wet etching and delamination of their related MAX-phase precursors. They exhibit unique electronic, optical, mechanical, and biological properties. To date, MXenes include over 50 different structures and compositions, with more than a hundred compositions predicted computationally (more than a thousand if surface terminations are taken into account), being the largest known family of 2D materials with a wide-ranging portfolio of physicochemical properties. Although individual materials may have outstanding characteristics, their combination with other classes of materials often produces a "best of both worlds" scenario. Usually, the synthesis of these composites involves intricate chemical reactions, as well as costly and time-consuming processes. This master's thesis focused on producing composites made of 2D MXenes and 0D fullerenol molecules based on a straightforward, fast, and green approach taking advantage of the extremely versatile MXene surface chemistry. The composites under investigation were primarily based on two different types of Ti₃C₂T_x MXene: (1) showing a predominance of -OH groups as surface terminations; (2) showing a predominance of -Cl groups as surface terminations. Different multiscale characterization techniques were employed to study the resulting materials, such as XRD, Raman spectroscopy, XPS, SEM, EDS, etc. The focus was on the effects of reaction temperature on the final material properties. Moreover, a combination of statistical analyses was performed to evaluate the reaction yield and composite properties. This thesis also discussed the challenges and perspectives of MXene/fullerenol composites.
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Details
- Title
- MXene/fullerenol composites
- Creators
- Mykhailo Yelipashev
- Contributors
- Yury Gogotsi (Advisor)
- Awarding Institution
- Drexel University
- Degree Awarded
- Master of Science (M.S.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Number of pages
- vi, 46 pages
- Resource Type
- Thesis
- Language
- English
- Academic Unit
- Materials (Science and) Engineering (Metallurgical Engineering) (1970-2026); College of Engineering (1970-2026); Drexel University
- Other Identifier
- 991021212314404721