Theoretical Insight of Physical Adsorption for a Single Component Adsorbent + Adsorbate System: II. The Henry Region

Handle URI:
http://hdl.handle.net/10754/599981
Title:
Theoretical Insight of Physical Adsorption for a Single Component Adsorbent + Adsorbate System: II. The Henry Region
Authors:
Chakraborty, Anutosh; Saha, Bidyut Baran; Ng, Kim Choon; Koyama, Shigeru; Srinivasan, Kandadai
Abstract:
The Henry coefficients of a single component adsorbent + adsorbate system are calculated from experimentally measured adsorption isotherm data, from which the heat of adsorption at zero coverage is evaluated. The first part of the papers relates to the development of thermodynamic property surfaces for a single-component adsorbent + adsorbate system1 (Chakraborty, A.; Saha, B. B.; Ng, K. C.; Koyama, S.; Srinivasan, K. Langmuir 2009, 25, 2204). A thermodynamic framework is presented to capture the relationship between the specific surface area (Ai) and the energy factor, and the surface structural and the surface energy heterogeneity distribution factors are analyzed. Using the outlined approach, the maximum possible amount of adsorbate uptake has been evaluated and compared with experimental data. It is found that the adsorbents with higher specific surface areas tend to possess lower heat of adsorption (ΔH°) at the Henry regime. In this paper, we have established the definitive relation between Ai and ΔH° for (i) carbonaceous materials, metal organic frameworks (MOFs), carbon nanotubes, zeolites + hydrogen, and (ii) activated carbons + methane systems. The proposed theoretical framework of At and AH0 provides valuable guides for researchers in developing advanced porous adsorbents for methane and hydrogen uptake. © 2009 American Chemical Society.
Citation:
Chakraborty A, Saha BB, Ng KC, Koyama S, Srinivasan K (2009) Theoretical Insight of Physical Adsorption for a Single Component Adsorbent + Adsorbate System: II. The Henry Region. Langmuir 25: 7359–7367. Available: http://dx.doi.org/10.1021/la900217t.
Publisher:
American Chemical Society (ACS)
Journal:
Langmuir
KAUST Grant Number:
WBS R265-000-286-597
Issue Date:
7-Jul-2009
DOI:
10.1021/la900217t
PubMed ID:
19469548
Type:
Article
ISSN:
0743-7463; 1520-5827
Sponsors:
The authors wish to thank King Abdullah University of Science & Technology (KAUST) for the generous financial support through the project (WBS R265-000-286-597).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorChakraborty, Anutoshen
dc.contributor.authorSaha, Bidyut Baranen
dc.contributor.authorNg, Kim Choonen
dc.contributor.authorKoyama, Shigeruen
dc.contributor.authorSrinivasan, Kandadaien
dc.date.accessioned2016-02-28T06:33:44Zen
dc.date.available2016-02-28T06:33:44Zen
dc.date.issued2009-07-07en
dc.identifier.citationChakraborty A, Saha BB, Ng KC, Koyama S, Srinivasan K (2009) Theoretical Insight of Physical Adsorption for a Single Component Adsorbent + Adsorbate System: II. The Henry Region. Langmuir 25: 7359–7367. Available: http://dx.doi.org/10.1021/la900217t.en
dc.identifier.issn0743-7463en
dc.identifier.issn1520-5827en
dc.identifier.pmid19469548en
dc.identifier.doi10.1021/la900217ten
dc.identifier.urihttp://hdl.handle.net/10754/599981en
dc.description.abstractThe Henry coefficients of a single component adsorbent + adsorbate system are calculated from experimentally measured adsorption isotherm data, from which the heat of adsorption at zero coverage is evaluated. The first part of the papers relates to the development of thermodynamic property surfaces for a single-component adsorbent + adsorbate system1 (Chakraborty, A.; Saha, B. B.; Ng, K. C.; Koyama, S.; Srinivasan, K. Langmuir 2009, 25, 2204). A thermodynamic framework is presented to capture the relationship between the specific surface area (Ai) and the energy factor, and the surface structural and the surface energy heterogeneity distribution factors are analyzed. Using the outlined approach, the maximum possible amount of adsorbate uptake has been evaluated and compared with experimental data. It is found that the adsorbents with higher specific surface areas tend to possess lower heat of adsorption (ΔH°) at the Henry regime. In this paper, we have established the definitive relation between Ai and ΔH° for (i) carbonaceous materials, metal organic frameworks (MOFs), carbon nanotubes, zeolites + hydrogen, and (ii) activated carbons + methane systems. The proposed theoretical framework of At and AH0 provides valuable guides for researchers in developing advanced porous adsorbents for methane and hydrogen uptake. © 2009 American Chemical Society.en
dc.description.sponsorshipThe authors wish to thank King Abdullah University of Science & Technology (KAUST) for the generous financial support through the project (WBS R265-000-286-597).en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleTheoretical Insight of Physical Adsorption for a Single Component Adsorbent + Adsorbate System: II. The Henry Regionen
dc.typeArticleen
dc.identifier.journalLangmuiren
dc.contributor.institutionNational University of Singapore, Singapore City, Singaporeen
dc.contributor.institutionKyushu University, Fukuoka, Japanen
dc.contributor.institutionFrigrite Limited, Melbourne, Australiaen
kaust.grant.numberWBS R265-000-286-597en

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