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Article: Boosting Cell Performance And Fuel Utilization Efficiency In A Solar Assisted Methanol Microfluidic Fuel Cell

TitleBoosting Cell Performance And Fuel Utilization Efficiency In A Solar Assisted Methanol Microfluidic Fuel Cell
Authors
KeywordsSolar hydrogen generation
Methanol water mixture
Microfluidic fuel cell
Power enhancement
Issue Date2020
PublisherElsevier. The Journal's web site is located at http://www.elsevier.com/locate/ijhydene
Citation
International Journal of Hydrogen Energy, 2020, v. 45 n. 41, p. 21796-21807 How to Cite?
AbstractSolar generated hydrogen from an optimized P25 thin film of 3.2 mg/cm2 with 0.25% of platinum as co-catalyst improves the peak power output of a methanol microfluidic fuel cell operated with a methanol to water ratio of 1:1 almost ninefold, from 22 mW/cm2 to 213 mW/cm2. Different methanol to water ratios in the fuel tank generate similar amounts of hydrogen, but the cell performance has large variations due to the different oxidation kinetics of hydrogen and methanol in the fuel breathing anode, resulting in a mixed-potential anodic performance. The trade-off between power output and fuel utilization diminishes in this system. The methanol utilization efficiency at peak power operation increases from 50% (for 0.2 V) to 78% (for 0.5 V) for methanol to water ratio of 1:1. The result indicates that in-situ generation of hydrogen by solar light can be applied to both portable and large-scale stationary fuel cells.
Persistent Identifierhttp://hdl.handle.net/10722/290186
ISSN
2020 Impact Factor: 5.816
2020 SCImago Journal Rankings: 1.212
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorKWOK, YH-
dc.contributor.authorWang, Y-
dc.contributor.authorZHANG, Y-
dc.contributor.authorZhang, H-
dc.contributor.authorLI, F-
dc.contributor.authorPAN, W-
dc.contributor.authorLeung, DYC-
dc.date.accessioned2020-10-22T08:23:15Z-
dc.date.available2020-10-22T08:23:15Z-
dc.date.issued2020-
dc.identifier.citationInternational Journal of Hydrogen Energy, 2020, v. 45 n. 41, p. 21796-21807-
dc.identifier.issn0360-3199-
dc.identifier.urihttp://hdl.handle.net/10722/290186-
dc.description.abstractSolar generated hydrogen from an optimized P25 thin film of 3.2 mg/cm2 with 0.25% of platinum as co-catalyst improves the peak power output of a methanol microfluidic fuel cell operated with a methanol to water ratio of 1:1 almost ninefold, from 22 mW/cm2 to 213 mW/cm2. Different methanol to water ratios in the fuel tank generate similar amounts of hydrogen, but the cell performance has large variations due to the different oxidation kinetics of hydrogen and methanol in the fuel breathing anode, resulting in a mixed-potential anodic performance. The trade-off between power output and fuel utilization diminishes in this system. The methanol utilization efficiency at peak power operation increases from 50% (for 0.2 V) to 78% (for 0.5 V) for methanol to water ratio of 1:1. The result indicates that in-situ generation of hydrogen by solar light can be applied to both portable and large-scale stationary fuel cells.-
dc.languageeng-
dc.publisherElsevier. The Journal's web site is located at http://www.elsevier.com/locate/ijhydene-
dc.relation.ispartofInternational Journal of Hydrogen Energy-
dc.subjectSolar hydrogen generation-
dc.subjectMethanol water mixture-
dc.subjectMicrofluidic fuel cell-
dc.subjectPower enhancement-
dc.titleBoosting Cell Performance And Fuel Utilization Efficiency In A Solar Assisted Methanol Microfluidic Fuel Cell-
dc.typeArticle-
dc.identifier.emailWang, Y: wang1fei@connect.hku.hk-
dc.identifier.emailLeung, DYC: ycleung@hku.hk-
dc.identifier.authorityLeung, DYC=rp00149-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.ijhydene.2020.05.163-
dc.identifier.scopuseid_2-s2.0-85086520377-
dc.identifier.hkuros316324-
dc.identifier.volume45-
dc.identifier.issue41-
dc.identifier.spage21796-
dc.identifier.epage21807-
dc.identifier.isiWOS:000558598300093-
dc.publisher.placeUnited Kingdom-
dc.identifier.issnl0360-3199-

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