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Dynamics of water confined in mesoporous magnesium carbonate
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials. (Nanotechnology and Functional Materials)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Nanotechnology and Functional Materials. (Nanoteknologi och funktionella material)
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2016 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 145, no 23, 234503Article in journal (Refereed) Published
Abstract [en]

We have measured the dynamics of water confined in a porous magnesium carbonate material, Upsalite (R), 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.

Place, publisher, year, edition, pages
2016. Vol. 145, no 23, 234503
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
URN: urn:nbn:se:uu:diva-310427DOI: 10.1063/1.4971285ISI: 000391688900028PubMedID: 27984867OAI: oai:DiVA.org:uu-310427DiVA: diva2:1056963
Conference
2016/12/15
Funder
Swedish Research CouncilVINNOVA
Available from: 2016-12-15 Created: 2016-12-15 Last updated: 2017-11-29Bibliographically approved

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Frykstrand, SaraWelch, KenStrømme, Maria

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