Dynamics of water in NaxCoO2·yH2O

Research output: Contribution to journal › Journal article › Research › peer-review

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Dynamics of water in NaxCoO2·yH2O. / Jalarvo, Niina; Bordallo, Heloisa N.; Aliouane, Nadir; Adams, Mark A.; Pieper, Jörg; Argyriou, Dimitri N.

In: Journal of Physical Chemistry B, Vol. 112, No. 3, 24.01.2008, p. 703-709.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Jalarvo, N, Bordallo, HN, Aliouane, N, Adams, MA, Pieper, J & Argyriou, DN 2008, 'Dynamics of water in NaxCoO2·yH2O', Journal of Physical Chemistry B, vol. 112, no. 3, pp. 703-709. https://doi.org/10.1021/jp074398y

APA

Jalarvo, N., Bordallo, H. N., Aliouane, N., Adams, M. A., Pieper, J., & Argyriou, D. N. (2008). Dynamics of water in NaxCoO2·yH2O. Journal of Physical Chemistry B, 112(3), 703-709. https://doi.org/10.1021/jp074398y

Vancouver

Jalarvo N, Bordallo HN, Aliouane N, Adams MA, Pieper J, Argyriou DN. Dynamics of water in NaxCoO2·yH2O. Journal of Physical Chemistry B. 2008 Jan 24;112(3):703-709. https://doi.org/10.1021/jp074398y

Author

Jalarvo, Niina ; Bordallo, Heloisa N. ; Aliouane, Nadir ; Adams, Mark A. ; Pieper, Jörg ; Argyriou, Dimitri N. / Dynamics of water in NaxCoO2·yH2O. In: Journal of Physical Chemistry B. 2008 ; Vol. 112, No. 3. pp. 703-709.

Bibtex

@article{95d9e8a82e9244868620af93556c136c,
title = "Dynamics of water in NaxCoO2·yH2O",
abstract = "Incoherent inelastic neutron scattering experiments were performed on Na0.7CoO2 and Na0.28CoO2·1. 3H2O in order to understand how the dynamics of the hydrogen-bond network of water is modified in the triangular crystalline lattice Na xCoO2·yH2O. Using quasi-elastic neutron scattering (QENS), we were able to differentiate between two types of proton dynamics: a fast process (due to water strongly bound into the sodium cobalt oxyhydrate structure during the hydration process) and a slow process (likely attributable to a collective motion). High-resolution QENS experiments, carried out on Na0.28CoO2·1.3H2O, show that, at temperatures above 310 K, the water dynamics can be well-described by a random jump diffusion model characterized by a diffusion constant equal to 0.9 × 10-9m2/ s, which is significantly lower than the rate of diffusion for bulk water. Furthermore, our results indicate that, at room temperature, the sodium ions have no influence on the rotational dynamics of the {"}fast{"} water molecules.",
author = "Niina Jalarvo and Bordallo, {Heloisa N.} and Nadir Aliouane and Adams, {Mark A.} and J{\"o}rg Pieper and Argyriou, {Dimitri N.}",
year = "2008",
month = jan,
day = "24",
doi = "10.1021/jp074398y",
language = "English",
volume = "112",
pages = "703--709",
journal = "Journal of Physical Chemistry Part B: Condensed Matter, Materials, Surfaces, Interfaces & Biophysical",
issn = "1520-6106",
publisher = "American Chemical Society",
number = "3",

}

RIS

TY - JOUR

T1 - Dynamics of water in NaxCoO2·yH2O

AU - Jalarvo, Niina

AU - Bordallo, Heloisa N.

AU - Aliouane, Nadir

AU - Adams, Mark A.

AU - Pieper, Jörg

AU - Argyriou, Dimitri N.

PY - 2008/1/24

Y1 - 2008/1/24

N2 - Incoherent inelastic neutron scattering experiments were performed on Na0.7CoO2 and Na0.28CoO2·1. 3H2O in order to understand how the dynamics of the hydrogen-bond network of water is modified in the triangular crystalline lattice Na xCoO2·yH2O. Using quasi-elastic neutron scattering (QENS), we were able to differentiate between two types of proton dynamics: a fast process (due to water strongly bound into the sodium cobalt oxyhydrate structure during the hydration process) and a slow process (likely attributable to a collective motion). High-resolution QENS experiments, carried out on Na0.28CoO2·1.3H2O, show that, at temperatures above 310 K, the water dynamics can be well-described by a random jump diffusion model characterized by a diffusion constant equal to 0.9 × 10-9m2/ s, which is significantly lower than the rate of diffusion for bulk water. Furthermore, our results indicate that, at room temperature, the sodium ions have no influence on the rotational dynamics of the "fast" water molecules.

AB - Incoherent inelastic neutron scattering experiments were performed on Na0.7CoO2 and Na0.28CoO2·1. 3H2O in order to understand how the dynamics of the hydrogen-bond network of water is modified in the triangular crystalline lattice Na xCoO2·yH2O. Using quasi-elastic neutron scattering (QENS), we were able to differentiate between two types of proton dynamics: a fast process (due to water strongly bound into the sodium cobalt oxyhydrate structure during the hydration process) and a slow process (likely attributable to a collective motion). High-resolution QENS experiments, carried out on Na0.28CoO2·1.3H2O, show that, at temperatures above 310 K, the water dynamics can be well-described by a random jump diffusion model characterized by a diffusion constant equal to 0.9 × 10-9m2/ s, which is significantly lower than the rate of diffusion for bulk water. Furthermore, our results indicate that, at room temperature, the sodium ions have no influence on the rotational dynamics of the "fast" water molecules.

UR - http://www.scopus.com/inward/record.url?scp=38949163630&partnerID=8YFLogxK

U2 - 10.1021/jp074398y

DO - 10.1021/jp074398y

M3 - Journal article

C2 - 18092769

AN - SCOPUS:38949163630

VL - 112

SP - 703

EP - 709

JO - Journal of Physical Chemistry Part B: Condensed Matter, Materials, Surfaces, Interfaces & Biophysical

JF - Journal of Physical Chemistry Part B: Condensed Matter, Materials, Surfaces, Interfaces & Biophysical

SN - 1520-6106

IS - 3

ER -

ID: 204463920