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Journal article
Pressure-induced shear and interlayer expansion in Ti 3 C 2 MXene in the presence of water
Science advances, v 4(1), peaao6850
05 Jan 2018
PMID: 29340304
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The interlayer spacing of the material Ti
3
C
2
MXene expands under pressure due to intercalation of water.
Pseudo-negative compressibility in layered materials is a phenomenon typically limited to in situ high-pressure experiments in some clay minerals and carbon-based materials. We show that the MXene Ti
3
C
2
T
x
expands along its crystallographic
c
direction when compressed in the presence of H
2
O. This expansive effect occurs when a mixture of powders and excess water is quasi-hydrostatically compressed in a diamond anvil cell; it also occurs to a much larger extent when powders are pressed uniaxially into discs and, notably, persists after pressure is released. We attribute the expansion to the insertion of H
2
O molecules and have identified shear-induced slipping of the nanosheets comprising multilayered MXene particles as a possible cause of this behavior in the latter case. This both has implications for the processing of MXenes and contributes to the field of materials with pseudo-negative compressibility by adding a new member for further investigation.
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Details
- Title
- Pressure-induced shear and interlayer expansion in Ti 3 C 2 MXene in the presence of water
- Creators
- Michael Ghidiu - Drexel UniversitySankalp Kota - Drexel UniversityVadym Drozd - Florida International UniversityMichel W. Barsoum - Drexel University
- Publication Details
- Science advances, v 4(1), peaao6850
- Publisher
- American Association for the Advancement of Science (AAAS)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000426694200055
- Scopus ID
- 2-s2.0-85042181720
- Other Identifier
- 991019168000904721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary