This title appears in the Scientific Report :
2016
Please use the identifier:
http://hdl.handle.net/2128/18968 in citations.
Please use the identifier: http://dx.doi.org/10.1063/1.4971285 in citations.
Dynamics of water confined in mesoporous magnesium carbonate
Dynamics of water confined in mesoporous magnesium carbonate
We have measured the dynamics of water confined in a porous magnesium carbonate material, Upsalite®, using the high-resolution neutron backscattering spectrometer SPHERES. We found quasielastic scattering that does not flatten out up to 360 K, which means that the dynamics of water are much slower t...
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Personal Name(s): | Soininen, Antti J. (Corresponding author) |
---|---|
Appavou, Marie-Sousai / Frykstrand, Sara / Welch, Ken / Khaneft, Marina / Kriele, Armin / Bellissent-Funel, Marie-Claire / Strømme, Maria / Wuttke, Joachim | |
Contributing Institute: |
JCNS-FRM-II; JCNS-FRM-II Streumethoden; JCNS-2 Neutronenstreuung; JCNS-1 |
Published in: | The journal of chemical physics, 145 (2016) 23, S. 234503 - |
Imprint: |
Melville, NY
American Institute of Physics
2016
|
DOI: |
10.1063/1.4971285 |
Document Type: |
Journal Article |
Research Program: |
Soft Matter, Health and Life Sciences Nanomaterials - Function and Manufacturing Jülich Centre for Neutron Research (JCNS) FRM II / MLZ |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1063/1.4971285 in citations.
We have measured the dynamics of water confined in a porous magnesium carbonate material, Upsalite®, using the high-resolution neutron backscattering spectrometer SPHERES. We found quasielastic scattering that does not flatten out up to 360 K, which means that the dynamics of water are much slower than in other matrix materials. Specifically, a single Lorentzian line could be fitted to the quasielastic part of the acquired spectra between 220 and 360 K. This, accompanied by an elastic line from dynamically frozen water present at all experimental temperatures, even above the melting point, signaled a significant amount of bound or slow water. |