Dissertation
Influence of surface terminations on intercalation, colloidal, and swelling properties of Ti₃C₂T_z MXene
Doctor of Philosophy (Ph.D.), Drexel University
Sep 2021
DOI:
https://doi.org/10.17918/00000625
Abstract
Ion intercalation between Ti₃C₂T_z layers is an important phenomenon that has led to its use in various applications like supercapacitors, water filtration membranes, Li, Na, K-ion batteries, polymer composites, and many more. Several of these properties can be improved by understanding the intercalation and swelling of Ti₃C₂T_z layers in various electrolytes. The understanding of this phenomenon is also important to increase the concentration of colloids than is currently possible. Studying the aggregation mechanisms of colloids can also help in the industrial-scale processing of MXenes. In this thesis, we examine the effect of various processing parameters on the properties of Ti₃C₂T_z MXene. The main focus is on analyzing the effect of various electrolytes on the swelling and delamination of Ti₃C₂T_z layers. Further, the stability and aggregation mechanism of Ti₃C₂T_z colloids is studied using zeta potential measurements as a function of pH. Finally, to enable water-free processing of MXene a new method for etching and delamination Ti₃C₂T_z using organic polar solvents and ammonium bifluoride is developed. And based on results obtained from these studies, the conventional processing parameters are modified, and obtained Ti₃C₂T_z MXene is tested in various applications.
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Details
- Title
- Influence of surface terminations on intercalation, colloidal, and swelling properties of Ti₃C₂T_z MXene
- Creators
- Varun R. Natu
- Contributors
- Michel W. Barsoum (Advisor)
- Awarding Institution
- Drexel University
- Degree Awarded
- Doctor of Philosophy (Ph.D.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Number of pages
- xviii, 145 pages
- Resource Type
- Dissertation
- Language
- English
- Academic Unit
- Materials (Science and) Engineering (Metallurgical Engineering) (1970-2026); College of Engineering (1970-2026); Drexel University
- Other Identifier
- 991015757596304721