Tuning the performance of MgO for thermochemical energy storage by dehydration – From fundamentals to phase impurities

Autor(en)
Danny Müller, Christian Knoll, G. Gravogl, Werner Artner, J. M. Welch, Elisabeth Eitenberger, Gernot Friedbacher, Manfred Schreiner, Michael Harasek, Klaudia Hradil, Andreas Werner, Ronald Miletich, Peter Weinberger
Abstrakt

Systematic variation of the dehydration temperature and time enables the preparation of highly reactive magnesium oxide for thermochemical energy storage purposes. The reactivity of the MgO, resulting from varying dehydration conditions has been studied by a comparative approach, including reactive surface area, particle morphology and reactivity towards rehydration. For the rehydration an in-situ powder X-Ray diffraction setup is used, allowing for continuous monitoring of Mg(OH)2 formation. The outcome of this investigation was subsequently applied to MgO from natural magnesites to assess the impact of impurities in the material on rehydration reactivity.

Organisation(en)
Institut für Mineralogie und Kristallographie
Externe Organisation(en)
Technische Universität Wien, Akademie der bildenden Künste Wien
Journal
Applied Energy
Band
253
Anzahl der Seiten
11
ISSN
0306-2619
DOI
https://doi.org/10.1016/j.apenergy.2019.113562
Publikationsdatum
08-2019
Peer-reviewed
Ja
ÖFOS 2012
105113 Kristallographie, 104011 Materialchemie
Schlagwörter
ASJC Scopus Sachgebiete
Building and Construction, Energy(all), Mechanical Engineering, Management, Monitoring, Policy and Law
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/tuning-the-performance-of-mgo-for-thermochemical-energy-storage-by-dehydration--from-fundamentals-to-phase-impurities(5fadaa4d-e1f0-49fc-9dbb-769c2bdc66da).html