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Conference Paper: Flexible hydrogen fuel cell fabricated on paper with embedded aluminium foil

TitleFlexible hydrogen fuel cell fabricated on paper with embedded aluminium foil
Authors
Issue Date2019
PublisherEDP Sciences. The Journal's web site is located at http://www.e3s-conferences.org/
Citation
2018 International Symposium on Hydrogen Energy and Energy Technologies (HEET 2018), Nagoya, Japan, 14-16 November 2018. In E3S Web of Conference, 2019, v. 83, article no. 01004:1-8 How to Cite?
AbstractDirect hydrogen fuel cells are generally heavy and rigid systems based on metal or plastic materials, which are not suitable for various miniwatt and flexible devices. In this study, we have developed a lightweight and flexible fuel cell based on paper substrate embedded with an Al foil inside, which is used as an in-situ hydrogen source by reaction with an electrolyte solution during operation. Benefited from the inhibited hydroxyl transportation by the porous cellulose network, the vigorous Al corrosion reaction is well controlled even though strong alkaline electrolyte is adopted, so that the fuel cell can be discharged for more than 5 hours at 1 mA cm-2 (0.83 V) with only 3.5 mg Al foil. The corresponding faradaic and energy efficiencies are as high as 72% and 18.3%, respectively. The fuel cell flexibility is also quite good when facing different bending angles. Considering its moderate power output, this flexible paper-based hydrogen fuel cell is especially suitable for powering various miniwatt and flexible devices, such as wearable electronics, biosensors, RFID tags, etc. However, higher power can be obtained by suitable stacking of the fuel cell.
Persistent Identifierhttp://hdl.handle.net/10722/272417
ISSN

 

DC FieldValueLanguage
dc.contributor.authorWang, Y-
dc.contributor.authorKwok, YH-
dc.contributor.authorZhang, Y-
dc.contributor.authorPan, W-
dc.contributor.authorLeung, YCD-
dc.date.accessioned2019-07-20T10:41:55Z-
dc.date.available2019-07-20T10:41:55Z-
dc.date.issued2019-
dc.identifier.citation2018 International Symposium on Hydrogen Energy and Energy Technologies (HEET 2018), Nagoya, Japan, 14-16 November 2018. In E3S Web of Conference, 2019, v. 83, article no. 01004:1-8-
dc.identifier.issn2267-1242-
dc.identifier.urihttp://hdl.handle.net/10722/272417-
dc.description.abstractDirect hydrogen fuel cells are generally heavy and rigid systems based on metal or plastic materials, which are not suitable for various miniwatt and flexible devices. In this study, we have developed a lightweight and flexible fuel cell based on paper substrate embedded with an Al foil inside, which is used as an in-situ hydrogen source by reaction with an electrolyte solution during operation. Benefited from the inhibited hydroxyl transportation by the porous cellulose network, the vigorous Al corrosion reaction is well controlled even though strong alkaline electrolyte is adopted, so that the fuel cell can be discharged for more than 5 hours at 1 mA cm-2 (0.83 V) with only 3.5 mg Al foil. The corresponding faradaic and energy efficiencies are as high as 72% and 18.3%, respectively. The fuel cell flexibility is also quite good when facing different bending angles. Considering its moderate power output, this flexible paper-based hydrogen fuel cell is especially suitable for powering various miniwatt and flexible devices, such as wearable electronics, biosensors, RFID tags, etc. However, higher power can be obtained by suitable stacking of the fuel cell.-
dc.languageeng-
dc.publisherEDP Sciences. The Journal's web site is located at http://www.e3s-conferences.org/-
dc.relation.ispartofE3S Web of Conferences-
dc.relation.ispartofInternational Symposium on Hydrogen Energy & Energy Technologies (HEET2018)-
dc.rightsReproduced with permission from Astronomy & Astrophysics, © ESO-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleFlexible hydrogen fuel cell fabricated on paper with embedded aluminium foil-
dc.typeConference_Paper-
dc.identifier.emailWang, Y: wang1fei@connect.hku.hk-
dc.identifier.emailLeung, YCD: ycleung@hku.hk-
dc.identifier.authorityLeung, YCD=rp00149-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1051/e3sconf/20198301004-
dc.identifier.scopuseid_2-s2.0-85062892309-
dc.identifier.hkuros299150-
dc.identifier.volume83-
dc.identifier.issue2019-
dc.publisher.placeFrance-

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