Analysis of hydrogen storage in nanoporous materials for low carbon energy applications

Bimbo, Nuno and Ting, Valeska P. and Hruzewicz-Kolodziejczyk, Anna and Mays, Timothy J. (2011) Analysis of hydrogen storage in nanoporous materials for low carbon energy applications. Faraday Discussions, 151 (1-2). pp. 59-74. ISSN 1359-6640

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Abstract

A robust, simple methodology for analysis of isotherms for the adsorption of fluids above their critical temperature onto nanostructured materials is presented. The analysis of hydrogen adsorption in a metal-organic framework is used as an example to illustrate the methodology, which allows the estimation of the absolute adsorption into nanoporous systems. Further advantages of employing this analysis are that adsorption systems can be described using a small number of parameters, and that excess and absolute isotherms can be extrapolated and used to predict adsorption behaviour at higher pressures and over different temperature ranges. Thermodynamic calculations, using the exact Clapeyron equation and the Clausius-Clapeyron approximation applied to the example dataset, are presented and compared. Conventional compression of hydrogen and adsorptive storage are evaluated, with an illustration of the pressure ranges in which adsorption facilitates storage of greater volumes of hydrogen than normal compression in the same operating conditions.

Item Type:
Journal Article
Journal or Publication Title:
Faraday Discussions
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1600/1606
Subjects:
?? metal-organic frameworkscarbide-derived carbonsgas-adsorptionporous materialshigh-pressureporositysolidsscatteringisothermsequationsphysical and theoretical chemistry ??
ID Code:
75844
Deposited By:
Deposited On:
21 Oct 2015 05:00
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 15:28