Study of Pristine MXene Formation
Author Information
Author(s): Bartosz Gurzęda, Nicolas Boulanger, Andreas Nordenström, Catherine Dejoie, Alexandr V. Talyzin
Primary Institution: Umeå University
Hypothesis
What is the structure of pristine MXene formed during the etching of Ti3AlC2 with LiF and HCl?
Conclusion
The study reveals that pristine MXene has a unique structure with narrow interlayer distances, which affects the kinetics of its formation.
Supporting Evidence
- The study provides the first in situ data on MXene formation in HF solution.
- Pristine MXene was found to have an interlayer distance of approximately 13.5 Å.
- The kinetics of MXene formation are influenced by the narrow width of the interlayer spaces.
- Prolonged etching at higher temperatures improved the transformation of MAX phase into MXene.
Takeaway
This research shows how a special type of material called MXene is made and how its structure changes during the process.
Methodology
In situ synchrotron radiation X-ray diffraction was used to study the synthesis of MXene directly in the etching solution.
Limitations
The study was limited by the challenges of handling toxic HF and the small size of the reaction cell.
Digital Object Identifier (DOI)
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