SAXS signature of the lamellar ordering of ionic domains of perfluorinated sulfonic-acid ionomers by electric and magnetic field-assisted casting

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dc.contributor.authorSILVA, JAQUELINE S. dapt_BR
dc.contributor.authorCARVALHO, SABRINA G.M.pt_BR
dc.contributor.authorSILVA, RODRIGO P. dapt_BR
dc.contributor.authorTAVARES, ANA C.pt_BR
dc.contributor.authorSCHADE, ULRICHpt_BR
dc.contributor.authorPUSKAR, LJILJANApt_BR
dc.contributor.authorFONSECA, FABIO C.pt_BR
dc.contributor.authorMATOS, BRUNO R.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2020-10-09T14:19:41Z
dc.date.available2020-10-09T14:19:41Z
dc.date.issued2020pt_BR
dc.description.abstractAt present, small angle X-ray scattering (SAXS) studies of perfluorinated sulfonic-acid ionomers (PFSAs) are unable to fully determine the true shape of their building blocks, as recent SAXS modelling predicts disk- and rod-like nanoionic domains as being equally possible. This scenario requires evidence-based findings to unravel the real shape of PFSA building blocks. Herein, a SAXS pattern signature for a lamellar nanophase separation of the ionic domains of Nafion is presented, backed by mid and far infrared spectroscopy (MIR and FIR) and wide angle X-ray scattering (WAXS) data of Nafion in different ionic forms, a broad range of ionic phase contents (EW ~ 859–42 252 g eq-1) and temperatures. The study indicates that the lamellar arrangement of the ionic domains is the most representative morphology that accounts for the physical properties of this ionomer. The lamellar SAXS reflections of Nafion are enhanced in electric and magnetic field-aligned membranes, as confirmed by atomic force microscopy (AFM). Electric and magnetic field-assisted casting of Nafion allowed producing nanostructured and anisotropic films with the lamellas stacked perpendicularly to the field vector, which is the direction of interest for several applications. Such nanostructured Nafion membranes are bestowed with advanced optical and proton transport properties, making them promising materials for solar and fuel cells.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipIDFAPESP: 17/11937-4; 14/50279-4; 14/09087-4; 13/50151-5pt_BR
dc.description.sponsorshipIDCNPq: 305620/2019-3pt_BR
dc.format.extent13764-13779pt_BR
dc.identifier.citationSILVA, JAQUELINE S. da; CARVALHO, SABRINA G.M.; SILVA, RODRIGO P. da; TAVARES, ANA C.; SCHADE, ULRICH; PUSKAR, LJILJANA; FONSECA, FABIO C.; MATOS, BRUNO R. SAXS signature of the lamellar ordering of ionic domains of perfluorinated sulfonic-acid ionomers by electric and magnetic field-assisted casting. <b>Physical Chemistry Chemical Physics</b>, v. 22, n. 24, p. 13764-13779, 2020. DOI: <a href="https://dx.doi.org/10.1039/d0cp01864c">10.1039/d0cp01864c</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/31419.
dc.identifier.doi10.1039/d0cp01864cpt_BR
dc.identifier.fasciculo24pt_BR
dc.identifier.issn1463-9076pt_BR
dc.identifier.orcid0000-0003-0708-2021pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0708-2021
dc.identifier.percentilfi66.26pt_BR
dc.identifier.percentilfiCiteScore83.50
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/31419
dc.identifier.vol22pt_BR
dc.relation.ispartofPhysical Chemistry Chemical Physicspt_BR
dc.rightsopenAccesspt_BR
dc.subjectscattering
dc.subjectx-ray equipment
dc.subjectx-ray sources
dc.subjectproton exchange membrane fuel cells
dc.subjectpolymers
dc.subjectfourier transform spectrometers
dc.subjectmeasuring instruments
dc.subjectatomic force microscopy
dc.subjectfuel cells
dc.titleSAXS signature of the lamellar ordering of ionic domains of perfluorinated sulfonic-acid ionomers by electric and magnetic field-assisted castingpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorSABRINA GONCALVES DE MACEDO CARVALHO
ipen.autorBRUNO RIBEIRO DE MATOS
ipen.autorFABIO CORAL FONSECA
ipen.autorRODRIGO PIRES DA SILVA
ipen.autorJAQUELINE DE SOUZA DA SILVA
ipen.codigoautor8206
ipen.codigoautor3889
ipen.codigoautor943
ipen.codigoautor15023
ipen.codigoautor14325
ipen.contributor.ipenauthorSABRINA GONCALVES DE MACEDO CARVALHO
ipen.contributor.ipenauthorBRUNO RIBEIRO DE MATOS
ipen.contributor.ipenauthorFABIO CORAL FONSECA
ipen.contributor.ipenauthorRODRIGO PIRES DA SILVA
ipen.contributor.ipenauthorJAQUELINE DE SOUZA DA SILVA
ipen.date.recebimento20-10
ipen.identifier.fi3.676pt_BR
ipen.identifier.fiCiteScore6.1
ipen.identifier.ipendoc27193pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.identifier.ods7
ipen.range.fi3.000 - 4.499
ipen.range.percentilfi50.00 - 74.99
ipen.type.genreArtigo
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relation.isAuthorOfPublication.latestForDiscoveryb74ddbcb-c882-4524-a3a3-a4e238b16407
sigepi.autor.atividadeMATOS, BRUNO R.:3889:610:Npt_BR
sigepi.autor.atividadeFONSECA, FABIO C.:943:610:Npt_BR
sigepi.autor.atividadeSILVA, RODRIGO P. da:15023:610:Npt_BR
sigepi.autor.atividadeCARVALHO, SABRINA G.M.:8206:720:Npt_BR
sigepi.autor.atividadeSILVA, JAQUELINE S. da:14325:610:Spt_BR
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