On the application of standard isotherms to hydrogen
adsorption in microporous materials
On the application of standard isotherms to hydrogen
adsorption in microporous materials
A mathematical framework for simulating equilibrium hydrogen adsorption isotherms in porous materials and estimating the values of key parameters associated with the adsorption process is developed. Explicit expressions for the excess, adsorbed, compressed and absolute masses, for any model isotherm, are derived. The modelling framework is used in combination with five standard equilibrium isotherm models to simulateexperimental data for Prussian blue analogues, nitropussides and metal-organic frameworks via nonlinear regression. The surface areas, the affinity and heterogeneity factors, and the pressure-dependent adsorption volumes are calculatedand compared to values available in the literature and the sensitivity of the results to the number of data points is quantified. The consistency of the results using different isotherm models is evaluated.
14464-14476
Al-Hajjjaj, Abdelwahid
e0ab73a1-2cbc-4290-a268-857aed0221e8
Zamora, Blanca
c700e304-4047-4791-81bc-33a6db97214e
Shah, Akeel A.
ed7baab6-105f-4c99-969b-a8038fa87aaf
Bavykin, Dmitry V.
1e9fabfc-d078-4585-876f-85ff33b7eed5
Reguera, Edilso
81aec0d4-3dfa-4a29-a243-660fadc5488c
Walsh, Frank C.
309528e7-062e-439b-af40-9309bc91efb2
1 September 2011
Al-Hajjjaj, Abdelwahid
e0ab73a1-2cbc-4290-a268-857aed0221e8
Zamora, Blanca
c700e304-4047-4791-81bc-33a6db97214e
Shah, Akeel A.
ed7baab6-105f-4c99-969b-a8038fa87aaf
Bavykin, Dmitry V.
1e9fabfc-d078-4585-876f-85ff33b7eed5
Reguera, Edilso
81aec0d4-3dfa-4a29-a243-660fadc5488c
Walsh, Frank C.
309528e7-062e-439b-af40-9309bc91efb2
Al-Hajjjaj, Abdelwahid, Zamora, Blanca, Shah, Akeel A., Bavykin, Dmitry V., Reguera, Edilso and Walsh, Frank C.
(2011)
On the application of standard isotherms to hydrogen
adsorption in microporous materials.
International Journal of Hydrogen Energy, 36 (22), .
(doi:10.1016/j.ijhydene.2011.07.110).
Abstract
A mathematical framework for simulating equilibrium hydrogen adsorption isotherms in porous materials and estimating the values of key parameters associated with the adsorption process is developed. Explicit expressions for the excess, adsorbed, compressed and absolute masses, for any model isotherm, are derived. The modelling framework is used in combination with five standard equilibrium isotherm models to simulateexperimental data for Prussian blue analogues, nitropussides and metal-organic frameworks via nonlinear regression. The surface areas, the affinity and heterogeneity factors, and the pressure-dependent adsorption volumes are calculatedand compared to values available in the literature and the sensitivity of the results to the number of data points is quantified. The consistency of the results using different isotherm models is evaluated.
Text
HE_8452.pdf
- Version of Record
Restricted to Repository staff only
Request a copy
More information
Published date: 1 September 2011
Organisations:
Engineering Science Unit
Identifiers
Local EPrints ID: 196461
URI: http://eprints.soton.ac.uk/id/eprint/196461
ISSN: 0360-3199
PURE UUID: 7f7d3b5c-f6b9-4231-87c5-c7e38d39f9e9
Catalogue record
Date deposited: 07 Sep 2011 14:11
Last modified: 14 Mar 2024 04:08
Export record
Altmetrics
Contributors
Author:
Abdelwahid Al-Hajjjaj
Author:
Blanca Zamora
Author:
Akeel A. Shah
Author:
Edilso Reguera
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics