Repository logo
 
Publication

Chemical stability of new nafion membranes doped with bisphosphonic acids under Fenton oxidative conditions

2023-12Journal article Open access
Simple item page
dc.contributor.authorTeixeira, Fatima
dc.contributor.authorTeixeira, António P. S.
dc.contributor.authorRangel, C. M.
dc.date.accessioned2023-12-29T15:53:45Z
dc.date.available2023-12-29T15:53:45Z
dc.date.issued2023-12
dc.description.abstractABSTRACT: The development of new proton exchange membranes for PEM technology in fuel cells and electrolysers with increased durability is paramount to system's lifetime and scalability. In this work, new modified Nafion membranes doped with bisphosphonic acids are proposed with increased resilience to chemical degradation by H2O2/Fe2+, mimicking ex-situ radical attack to membrane structure. Relevant properties were evaluated throughout Fenton's test using fluoride ion release and gravimetry determinations, and by ATR-FTIR spectros-copy and SEM before and after the chemical degradation. The new membranes showed a very good chemical stability after oxidative degradation under Fenton's test conditions at 80 degrees C, with more durability than Nafion 115 commercial membrane. After chemical degradation, the proton conduction of the membranes was assessed through EIS which reveals a decrease in the proton conductivity of all membranes, with the new modified membranes showing a smaller decrease of their proton conduction properties than Nafion 115 membrane. Fluoride ion release, weight loss measurements and ATR-FTIR spectros-copy data analysis suggest degradation of the side chain of the ionomer.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationTeixeira, Fátima... et.al - Chemical stability of new nafion membranes doped with bisphosphonic acids under Fenton oxidative conditions. In: International Journal of Hydrogen Energy, 2023, vol. 48 (96), p. 37489-37499pt_PT
dc.identifier.doi10.1016/j.ijhydene.2023.04.063pt_PT
dc.identifier.issn0360-3199
dc.identifier.urihttp://hdl.handle.net/10400.9/4210
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationUnderstanding CO2 electro-reduction in porous materials
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relation.publisherversionhttps://doi.org/10.1016/j.ijhydene.2023.04.063pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectFuel cellspt_PT
dc.subjectProton exchange membranept_PT
dc.subjectElectrolysispt_PT
dc.subjectNafion modified membranespt_PT
dc.subjectChemical degradationpt_PT
dc.titleChemical stability of new nafion membranes doped with bisphosphonic acids under Fenton oxidative conditionspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleUnderstanding CO2 electro-reduction in porous materials
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FEQU-EPQ%2F2195%2F2021/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PT
oaire.citation.endPage37499pt_PT
oaire.citation.issue96pt_PT
oaire.citation.startPage37489pt_PT
oaire.citation.titleInternational Journal of Hydrogen Energypt_PT
oaire.citation.volume48pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameTeixeira
person.familyNameTeixeira
person.familyNameRangel
person.givenNameFatima
person.givenNameAntónio Paulo Silva
person.givenNameCarmen M.
person.identifier.ciencia-idC014-509B-D1DC
person.identifier.ciencia-idAA13-FF7C-9E29
person.identifier.orcid0000-0003-0801-2068
person.identifier.orcid0000-0001-7448-0893
person.identifier.orcid0000-0001-7996-8142
person.identifier.ridN-5456-2014
person.identifier.ridD-5477-2011
person.identifier.scopus-author-id7102746385
person.identifier.scopus-author-id36856362300
person.identifier.scopus-author-id7006108156
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication3daa40f1-7bb6-488d-83d9-04a61c655d67
relation.isAuthorOfPublicationd8ff15d1-5d27-4e57-8654-f0f85fd79510
relation.isAuthorOfPublication804e595a-d539-46a2-ae78-6cadc8ca9457
relation.isAuthorOfPublication.latestForDiscovery3daa40f1-7bb6-488d-83d9-04a61c655d67
relation.isProjectOfPublication84bfb929-f6f3-4725-8ab0-80d8a21ea9f9
relation.isProjectOfPublication28378e4b-c848-4eeb-8656-c55057426e47
relation.isProjectOfPublication29d85f88-1874-4fa0-b9d1-59c2c66e8c67
relation.isProjectOfPublication.latestForDiscovery84bfb929-f6f3-4725-8ab0-80d8a21ea9f9

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
InternationalJournalHydrogenEnergy_vol.48_37489-37499.pdf
Size:
72.13 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ME - Artigos em revistas internacionais