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Article: Direct calorimetric measurement of enthalpy of adsorption of carbon dioxide on CD-MOF-2, a green metal-organic framework

TitleDirect calorimetric measurement of enthalpy of adsorption of carbon dioxide on CD-MOF-2, a green metal-organic framework
Authors
Issue Date2013
Citation
Journal of the American Chemical Society, 2013, v. 135, n. 18, p. 6790-6793 How to Cite?
AbstractThe enthalpy of adsorption of CO2 on an environmentally friendly metal-organic framework, CD-MOF-2, has been determined directly for the first time using adsorption calorimetry at 25 C. This calorimetric methodology provides a much more accurate and model-independent measurement of adsorption enthalpy than that obtained by calculation from the adsorption isotherms, especially for systems showing complex and strongly exothermic adsorption behavior. The differential enthalpy of CO2 adsorption shows enthalpy values in line with chemisorption behavior. At near-zero coverage, an irreversible binding event with an enthalpy of -113.5 kJ/mol CO2 is observed, which is followed by a reversible -65.4 kJ/mol binding event. These enthalpies are assigned to adsorption on more and less reactive hydroxyl groups, respectively. Further, a second plateau shows an enthalpy of -40.1 kJ/mol and is indicative of physisorbed CO2. The calorimetric data confirm the presence of at least two energetically distinct binding sites for chemisorbed CO2 on CD-MOF-2. © 2013 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/333030
ISSN
2023 Impact Factor: 14.4
2023 SCImago Journal Rankings: 5.489
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWu, Di-
dc.contributor.authorGassensmith, Jeremiah J.-
dc.contributor.authorGouveîa, Douglas-
dc.contributor.authorUshakov, Sergey-
dc.contributor.authorStoddart, J. Fraser-
dc.contributor.authorNavrotsky, Alexandra-
dc.date.accessioned2023-10-06T05:16:12Z-
dc.date.available2023-10-06T05:16:12Z-
dc.date.issued2013-
dc.identifier.citationJournal of the American Chemical Society, 2013, v. 135, n. 18, p. 6790-6793-
dc.identifier.issn0002-7863-
dc.identifier.urihttp://hdl.handle.net/10722/333030-
dc.description.abstractThe enthalpy of adsorption of CO2 on an environmentally friendly metal-organic framework, CD-MOF-2, has been determined directly for the first time using adsorption calorimetry at 25 C. This calorimetric methodology provides a much more accurate and model-independent measurement of adsorption enthalpy than that obtained by calculation from the adsorption isotherms, especially for systems showing complex and strongly exothermic adsorption behavior. The differential enthalpy of CO2 adsorption shows enthalpy values in line with chemisorption behavior. At near-zero coverage, an irreversible binding event with an enthalpy of -113.5 kJ/mol CO2 is observed, which is followed by a reversible -65.4 kJ/mol binding event. These enthalpies are assigned to adsorption on more and less reactive hydroxyl groups, respectively. Further, a second plateau shows an enthalpy of -40.1 kJ/mol and is indicative of physisorbed CO2. The calorimetric data confirm the presence of at least two energetically distinct binding sites for chemisorbed CO2 on CD-MOF-2. © 2013 American Chemical Society.-
dc.languageeng-
dc.relation.ispartofJournal of the American Chemical Society-
dc.titleDirect calorimetric measurement of enthalpy of adsorption of carbon dioxide on CD-MOF-2, a green metal-organic framework-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/ja402315d-
dc.identifier.pmid23611694-
dc.identifier.scopuseid_2-s2.0-84877268637-
dc.identifier.volume135-
dc.identifier.issue18-
dc.identifier.spage6790-
dc.identifier.epage6793-
dc.identifier.eissn1520-5126-
dc.identifier.isiWOS:000318839300013-

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