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Article: Microfluidics-based pH-differential reactor for CO2 utilization: A mathematical study

TitleMicrofluidics-based pH-differential reactor for CO2 utilization: A mathematical study
Authors
KeywordsCO2 conversion
Microfluidics
pH-differential
Modelling
Electrochemistry
Issue Date2018
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/apenergy
Citation
Applied Energy, 2018, v. 227, p. 525-532 How to Cite?
AbstractThis paper reports a mathematical model for calculating various losses in a pH differential microfluidic electrolytic cell (PMEC) for CO2 to formic acid conversion. The microfluidic characteristics of the cell were examined, and in respect of electro-chemical equilibrium states, major limiting factors such as mass transfer constraints, kinetic losses and overpotentials, were considered and acid–base interface and neutralisation losses therein identified. Losses of electrical resistance on electrodes and within micro-channels were quantified, and computational results were validated against previous experimental data. To the best of our knowledge, the model is the first for determining dual electrolyte arrangements and associated losses and can be used to develop parametric optimisation strategies.
Persistent Identifierhttp://hdl.handle.net/10722/272266
ISSN
2017 Impact Factor: 7.9
2015 SCImago Journal Rankings: 2.998
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLu, X-
dc.contributor.authorLeung, DYC-
dc.contributor.authorWang, H-
dc.contributor.authorXuan, J-
dc.date.accessioned2019-07-20T10:38:55Z-
dc.date.available2019-07-20T10:38:55Z-
dc.date.issued2018-
dc.identifier.citationApplied Energy, 2018, v. 227, p. 525-532-
dc.identifier.issn0306-2619-
dc.identifier.urihttp://hdl.handle.net/10722/272266-
dc.description.abstractThis paper reports a mathematical model for calculating various losses in a pH differential microfluidic electrolytic cell (PMEC) for CO2 to formic acid conversion. The microfluidic characteristics of the cell were examined, and in respect of electro-chemical equilibrium states, major limiting factors such as mass transfer constraints, kinetic losses and overpotentials, were considered and acid–base interface and neutralisation losses therein identified. Losses of electrical resistance on electrodes and within micro-channels were quantified, and computational results were validated against previous experimental data. To the best of our knowledge, the model is the first for determining dual electrolyte arrangements and associated losses and can be used to develop parametric optimisation strategies.-
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/apenergy-
dc.relation.ispartofApplied Energy-
dc.subjectCO2 conversion-
dc.subjectMicrofluidics-
dc.subjectpH-differential-
dc.subjectModelling-
dc.subjectElectrochemistry-
dc.titleMicrofluidics-based pH-differential reactor for CO2 utilization: A mathematical study-
dc.typeArticle-
dc.identifier.emailLeung, DYC: ycleung@hku.hk-
dc.identifier.authorityLeung, DYC=rp00149-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.apenergy.2017.08.191-
dc.identifier.scopuseid_2-s2.0-85028321908-
dc.identifier.hkuros299124-
dc.identifier.volume227-
dc.identifier.spage525-
dc.identifier.epage532-
dc.identifier.isiWOS:000445987200053-
dc.publisher.placeUnited Kingdom-

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