Reversible methane storage in a polymer-supported semi-clathrate hydrate at ambient temperature and pressure

Wang, W., Carter, B. O., Bray, C. L., Steiner, A., Bacsa, J., Jones, J. T. A., Cropper, C., Khimyak, Y. Z., Adams, D. J. and Cooper, A. I. (2009) Reversible methane storage in a polymer-supported semi-clathrate hydrate at ambient temperature and pressure. Chemistry of Materials, 21(16), pp. 3810-3815. (doi: 10.1021/cm9009628)

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Abstract

A key issue regarding the use of clathrates and semi-clathrate hydrates for practical gas storage is the pressure−temperature stability of the material. For many practical applications, the avoidance of cooling, gas overpressure, and mechanical mixing would be very desirable. Here, we show that porous emulsion-templated polymer supports greatly enhance methane uptake kinetics in tetra-iso-amylammonium bromide semi-clathrate hydrates without introducing complex mixing technologies. These systems show unprecedented thermal stability and can be decomposed upon demand to release the gas. Single crystal X-ray structure analysis of the semi-clathrates loaded with methane or krypton were obtained, confirming that the gases are stored in the dodecahedral A′ and A′′ cages.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Adams, Dave
Authors: Wang, W., Carter, B. O., Bray, C. L., Steiner, A., Bacsa, J., Jones, J. T. A., Cropper, C., Khimyak, Y. Z., Adams, D. J., and Cooper, A. I.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Chemistry of Materials
Publisher:American Chemical Society
ISSN:0897-4756
ISSN (Online):1520-5002
Published Online:03 August 2009

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