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Journal article
Vibrational signature of hydrated protons confined in MXene interlayers
Nature communications, v 14(1), 1322
10 Mar 2023
PMID: 36898985
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The hydration structure of protons has been studied for decades in bulk water and protonated clusters due to its importance but has remained elusive in planar confined environments. Two-dimensional (2D) transition metal carbides known as MXenes show extreme capacitance in protic electrolytes, which has attracted attention in the energy storage field. We report here that discrete vibrational modes related to protons intercalated in the 2D slits between Ti
C
T
MXene layers can be detected using operando infrared spectroscopy. The origin of these modes, not observed for protons in bulk water, is attributed to protons with reduced coordination number in confinement based on Density Functional Theory calculations. This study therefore demonstrates a useful tool for the characterization of chemical species under 2D confinement.
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Details
- Title
- Vibrational signature of hydrated protons confined in MXene interlayers
- Creators
- Mailis Lounasvuori - Helmholtz-Zentrum Berlin für Materialien und EnergieYangyunli Sun - University of California, RiversideTyler S Mathis - Drexel UniversityLjiljana Puskar - Helmholtz-Zentrum Berlin für Materialien und EnergieUlrich Schade - Helmholtz-Zentrum Berlin für Materialien und EnergieDe-En Jiang - Vanderbilt UniversityYury Gogotsi - Drexel UniversityTristan Petit (Corresponding Author) - Helmholtz-Zentrum Berlin für Materialien und Energie
- Publication Details
- Nature communications, v 14(1), 1322
- Publisher
- Springer Nature
- Number of pages
- 9
- Grant note
- 89592 / Volkswagen Foundation (VolkswagenStiftung) 947852 / EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000955761600009
- Scopus ID
- 2-s2.0-85149982871
- Other Identifier
- 991020189680704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical