Water Nanochannels in Ultrathin Clinochlore Phyllosilicate Mineral with Ice-like Behavior
(2024) In Journal of Physical Chemistry C- Abstract
Water is the matrix of life, and its confinement in nanocavities is a central topic from geophysics to nanotribology. Phyllosilicate layered minerals provide natural nanocavities for water due to their capacity to hydrate by confining water molecules in the interlamellar space. However, the hydration of phyllosilicates at the nanoscale is not a fully understood process and depends on the geological specimens. In this work, we report the formation of aqueous nanochannels in the interlamellar space of ultrathin clinochlore phyllosilicate mineral using infrared scattering-type scanning near-field optical microscopy and Kelvin probe force microscopy. We demonstrate that nanoconfinement of water in clinochlore changes the overall mechanical,... (More)
Water is the matrix of life, and its confinement in nanocavities is a central topic from geophysics to nanotribology. Phyllosilicate layered minerals provide natural nanocavities for water due to their capacity to hydrate by confining water molecules in the interlamellar space. However, the hydration of phyllosilicates at the nanoscale is not a fully understood process and depends on the geological specimens. In this work, we report the formation of aqueous nanochannels in the interlamellar space of ultrathin clinochlore phyllosilicate mineral using infrared scattering-type scanning near-field optical microscopy and Kelvin probe force microscopy. We demonstrate that nanoconfinement of water in clinochlore changes the overall mechanical, optical, and dielectric properties of the system. We propose a capacitive model that describes the dielectric response of the aqueous nanochannels. Our model is endorsed by a robust crystal truncation rod analysis of synchrotron X-ray diffraction data. We found that clinochlore termination combines hydrated structures ordered along the c-axis. We also find evidence of ice-like behavior of the water nanoconfined in clinochlore by Fourier-transform infrared spectroscopy. Notably, our work introduces clinochlore as a natural platform for water confinement in two-dimensional systems that can be engineered for several applications in the frontiers of nanotechnology.
(Less)
- author
- organization
- publishing date
- 2024
- type
- Contribution to journal
- publication status
- epub
- subject
- in
- Journal of Physical Chemistry C
- pages
- 11 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:85197559118
- ISSN
- 1932-7447
- DOI
- 10.1021/acs.jpcc.4c02170
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2024 American Chemical Society.
- id
- 61ef530b-58f6-42e8-a667-ec888d6cac18
- date added to LUP
- 2024-07-16 15:00:11
- date last changed
- 2024-08-12 14:13:59
@article{61ef530b-58f6-42e8-a667-ec888d6cac18, abstract = {{<p>Water is the matrix of life, and its confinement in nanocavities is a central topic from geophysics to nanotribology. Phyllosilicate layered minerals provide natural nanocavities for water due to their capacity to hydrate by confining water molecules in the interlamellar space. However, the hydration of phyllosilicates at the nanoscale is not a fully understood process and depends on the geological specimens. In this work, we report the formation of aqueous nanochannels in the interlamellar space of ultrathin clinochlore phyllosilicate mineral using infrared scattering-type scanning near-field optical microscopy and Kelvin probe force microscopy. We demonstrate that nanoconfinement of water in clinochlore changes the overall mechanical, optical, and dielectric properties of the system. We propose a capacitive model that describes the dielectric response of the aqueous nanochannels. Our model is endorsed by a robust crystal truncation rod analysis of synchrotron X-ray diffraction data. We found that clinochlore termination combines hydrated structures ordered along the c-axis. We also find evidence of ice-like behavior of the water nanoconfined in clinochlore by Fourier-transform infrared spectroscopy. Notably, our work introduces clinochlore as a natural platform for water confinement in two-dimensional systems that can be engineered for several applications in the frontiers of nanotechnology.</p>}}, author = {{de Oliveira, Raphaela and Freitas, Luisa V.C. and Chacham, Helio and Freitas, Raul O. and Moreira, Roberto L. and Chen, Huaiyu and Hammarberg, Susanna and Wallentin, Jesper and Rodrigues-Junior, Gilberto and Marçal, Lucas A.B. and Calligaris, Guilherme A. and Cadore, Alisson R. and Krambrock, Klaus and Barcelos, Ingrid D. and Malachias, Angelo}}, issn = {{1932-7447}}, language = {{eng}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Journal of Physical Chemistry C}}, title = {{Water Nanochannels in Ultrathin Clinochlore Phyllosilicate Mineral with Ice-like Behavior}}, url = {{http://dx.doi.org/10.1021/acs.jpcc.4c02170}}, doi = {{10.1021/acs.jpcc.4c02170}}, year = {{2024}}, }