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Article: Review of kelvin's equation and its modification in characterization of mesoporous materials

TitleReview of kelvin's equation and its modification in characterization of mesoporous materials
Authors
KeywordsAdsorption isotherm
Hysteresis loop
Kelvin's equation
Physisorption
Pore size distribution
Issue Date2006
PublisherInstitute of Physics Publishing Ltd.. The Journal's web site is located at http://www.iop.org/EJ/journal/cjcp
Citation
Chinese Journal Of Chemical Physics, 2006, v. 19 n. 2, p. 102-108 How to Cite?
AbstractPhysical and mathematical models as well as calculation methods of nitrogen bed on porous media have been introduced to evaluate the structural parameters of mesoporous materials. Kelvin's equation is a link between the relative adsorbate pressure, the mean pore radius, and pore capillarity on the basis of macroscopic capillary condensation. However, Kelvin's equation has been identified that it underestimates the calculated pore size of a material especially in the boundary of pore size which is between 2 and 4 nm. Various modifications on Kelvin's equation were mentioned in order to develop a new model to improve the accuracy of pore size calculation. The problems on conventional mathematical models were analyzed and discussed. A number of calculation methods on physisorption and pore size, especially fundamental theories of physisorption, basis of models and their deficiencies are reviewed. It can provide guidance on developing a modified Kelvin's equation for pore size calculation. © 2006 Chinese Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/132387
ISSN
2015 Impact Factor: 0.496
2015 SCImago Journal Rankings: 0.877
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Yen_HK
dc.contributor.authorLam, FLYen_HK
dc.contributor.authorYan, ZFen_HK
dc.contributor.authorHu, Xen_HK
dc.date.accessioned2011-03-28T09:23:55Z-
dc.date.available2011-03-28T09:23:55Z-
dc.date.issued2006en_HK
dc.identifier.citationChinese Journal Of Chemical Physics, 2006, v. 19 n. 2, p. 102-108en_HK
dc.identifier.issn1674-0068en_HK
dc.identifier.urihttp://hdl.handle.net/10722/132387-
dc.description.abstractPhysical and mathematical models as well as calculation methods of nitrogen bed on porous media have been introduced to evaluate the structural parameters of mesoporous materials. Kelvin's equation is a link between the relative adsorbate pressure, the mean pore radius, and pore capillarity on the basis of macroscopic capillary condensation. However, Kelvin's equation has been identified that it underestimates the calculated pore size of a material especially in the boundary of pore size which is between 2 and 4 nm. Various modifications on Kelvin's equation were mentioned in order to develop a new model to improve the accuracy of pore size calculation. The problems on conventional mathematical models were analyzed and discussed. A number of calculation methods on physisorption and pore size, especially fundamental theories of physisorption, basis of models and their deficiencies are reviewed. It can provide guidance on developing a modified Kelvin's equation for pore size calculation. © 2006 Chinese Physical Society.en_HK
dc.languageengen_US
dc.publisherInstitute of Physics Publishing Ltd.. The Journal's web site is located at http://www.iop.org/EJ/journal/cjcpen_HK
dc.relation.ispartofChinese Journal of Chemical Physicsen_HK
dc.subjectAdsorption isothermen_HK
dc.subjectHysteresis loopen_HK
dc.subjectKelvin's equationen_HK
dc.subjectPhysisorptionen_HK
dc.subjectPore size distributionen_HK
dc.titleReview of kelvin's equation and its modification in characterization of mesoporous materialsen_HK
dc.typeArticleen_HK
dc.identifier.emailLam, FLY:kefrank@hku.hken_HK
dc.identifier.authorityLam, FLY=rp01470en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1360/cjcp2006.19(2).102.7en_HK
dc.identifier.scopuseid_2-s2.0-33745760861en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33745760861&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume19en_HK
dc.identifier.issue2en_HK
dc.identifier.spage102en_HK
dc.identifier.epage108en_HK
dc.identifier.isiWOS:000237684100004-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridZhang, Y=13806862100en_HK
dc.identifier.scopusauthoridLam, FLY=7102075931en_HK
dc.identifier.scopusauthoridYan, ZF=7402519855en_HK
dc.identifier.scopusauthoridHu, X=7404709975en_HK

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