Direct determination of enthalpies of sorption using pressure-gradient differential scanning calorimetry: CO2 sorption by Cu-HKUST

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dc.contributor.authorFeldmann, Wesley K.en_ZA
dc.contributor.authorWhite, Kerry-Anneen_ZA
dc.contributor.authorBezuidenhout, Charl X.en_ZA
dc.contributor.authorSmith, Vincent J.en_ZA
dc.contributor.authorEsterhuysen, Catharineen_ZA
dc.contributor.authorBarbour, Leonard J.en_ZA
dc.date.accessioned2022-05-30T13:39:24Zen_ZA
dc.date.available2022-05-30T13:39:24Zen_ZA
dc.date.issued2020-06-01en_ZA
dc.descriptionCITATION: Feldmann, W. K. et al. 2020. Direct Determination of Enthalpies of Sorption Using Pressure-Gradient Differential Scanning Calorimetry: CO2 Sorption by Cu-HKUST. ChemSusChem, 13(1): 102-105. doi:10.1002/cssc.201902990en_ZA
dc.descriptionThe original publication is available at https://chemistry-europe.onlinelibrary.wiley.com/journal/1864564xen_ZA
dc.description.abstractEnthalpy of sorption (ΔH) is an important parameter for the design of separation processes using adsorptive materials. A pressure-ramped calorimetric method is described and tested for the direct determination of ΔH values. Combining a heatflow thermogram with a single sorption isotherm enables the determination of ΔH as a function of loading. The method is validated by studying CO2 sorption by the well-studied metal–organic framework Cu-HKUST over a temperature range of 288–318 K. The measured ΔH values compare well with previously reported data determined by using isosteric and calorimetric methods. The pressure-gradient differential scanning calorimetry (PGDSC) method produces reliable high-resolution results by direct measurement of the enthalpy changes during the sorption processes. Additionally, PGDSC is less labor-intensive and time-consuming than the isosteric method and offers detailed insight into how ΔH changes over a given loading range.en_ZA
dc.description.urihttps://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/cssc.201902990en_ZA
dc.description.versionPublishers versionen_ZA
dc.identifier.citationFeldmann, W. K. et al. 2020. Direct Determination of Enthalpies of Sorption Using Pressure-Gradient Differential Scanning Calorimetry: CO2 Sorption by Cu-HKUST. ChemSusChem, 13(1): 102-105. doi:10.1002/cssc.201902990en_ZA
dc.identifier.issn1864-564X (online)en_ZA
dc.identifier.issn1864-5631 (print)en_ZA
dc.identifier.otherdoi:10.1002/cssc.201902990en_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/125268en_ZA
dc.language.isoen_ZAen_ZA
dc.publisherWileyen_ZA
dc.rights.holderWileyen_ZA
dc.subjectEnthalpy of sorptionen_ZA
dc.subjectSeparation (Technology)en_ZA
dc.subjectAdsorptionen_ZA
dc.subjectPhenolsen_ZA
dc.subjectTanninsen_ZA
dc.subjectAnthocyaninsen_ZA
dc.subjectChemometricsen_ZA
dc.titleDirect determination of enthalpies of sorption using pressure-gradient differential scanning calorimetry: CO2 sorption by Cu-HKUSTen_ZA
dc.typeArticleen_ZA
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