Next Article in Journal
Atomistically Informed Extended Gibbs Energy Description for Phase-Field Simulation of Tempering of Martensitic Steel
Next Article in Special Issue
Effect of Guest Atom Composition on the Structural and Vibrational Properties of the Type II Clathrate-Based Materials AxSi136, AxGe136 and AxSn136 (A = Na, K, Rb, Cs; 0 ≤ x ≤ 24)
Previous Article in Journal
Corrosion Behavior and Strength of Dissimilar Bonding Material between Ti and Mg Alloys Fabricated by Spark Plasma Sintering
Previous Article in Special Issue
Lattice Dynamics Study of Phonon Instability and Thermal Properties of Type-I Clathrate K8Si46 under High Pressure
Open AccessArticle

Micro-Tomographic Investigation of Ice and Clathrate Formation and Decomposition under Thermodynamic Monitoring

Illwerke VKW Professorship for Energy Efficiency, Vorarlberg University of Applied Sciences, Hochschulstraße 1, Dornbirn 6850, Austria
Institute of Physical Chemistry, University of Innsbruck, Innrain 80–82, Innsbruck 6020, Austria
Department of Mathematics, University of Innsbruck, Technikerstraße 13, Innsbruck 6020, Austria
Authors to whom correspondence should be addressed.
Academic Editor: Yuri Grin
Materials 2016, 9(8), 668;
Received: 15 June 2016 / Revised: 18 July 2016 / Accepted: 27 July 2016 / Published: 8 August 2016
(This article belongs to the Special Issue Inorganic Clathrate Materials)
Clathrate hydrates are inclusion compounds in which guest molecules are trapped in a host lattice formed by water molecules. They are considered an interesting option for future energy supply and storage technologies. In the current paper, time lapse 3D micro computed tomographic (µCT) imaging with ice and tetrahydrofuran (THF) clathrate hydrate particles is carried out in conjunction with an accurate temperature control and pressure monitoring. µCT imaging reveals similar behavior of the ice and the THF clathrate hydrate at low temperatures while at higher temperatures (3 K below the melting point), significant differences can be observed. Strong indications for micropores are found in the ice as well as the THF clathrate hydrate. They are stable in the ice while unstable in the clathrate hydrate at temperatures slightly below the melting point. Significant transformations in surface and bulk structure can be observed within the full temperature range investigated in both the ice and the THF clathrate hydrate. Additionally, our results point towards an uptake of molecular nitrogen in the THF clathrate hydrate at ambient pressures and temperatures from 230 K to 271 K. View Full-Text
Keywords: micro-computed X-ray tomography (µCT); clathrate hydrates; ice micro-computed X-ray tomography (µCT); clathrate hydrates; ice
Show Figures

Graphical abstract

MDPI and ACS Style

Arzbacher, S.; Petrasch, J.; Ostermann, A.; Loerting, T. Micro-Tomographic Investigation of Ice and Clathrate Formation and Decomposition under Thermodynamic Monitoring. Materials 2016, 9, 668.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop