Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/100911
DC Field | Value | Language |
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dc.contributor.author | Kurapova, Olga Yu. | - |
dc.contributor.author | Faia, Pedro M. | - |
dc.contributor.author | Zaripov, Artem A. | - |
dc.contributor.author | Pazheltsev, Vasily V. | - |
dc.contributor.author | Glukharev, Artem A. | - |
dc.contributor.author | Konakov, Vladimir G. | - |
dc.date.accessioned | 2022-07-20T08:28:24Z | - |
dc.date.available | 2022-07-20T08:28:24Z | - |
dc.date.issued | 2021 | - |
dc.identifier.issn | 2076-3417 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/100911 | - |
dc.description.abstract | The development of novel proton-conducting membrane materials for electrochemical power units, i.e., low temperature fuel cells (FCs), efficiently working up to 300 C, is a critical problem related to the rapid shift to hydrogen energy. Polyantimonic acid (PAA) is characterized by high conductivity, sufficient thermal stability and can be regarded as a prospective proton-conducting material. However, the fabrication of bulk PAA-based membranes with high proton conductivity remains a challenging task. In the present work, for the first time, the authors report the investigation on proton conductivity of bulk PAA-based membranes in the temperature range 25–250 C, both in dry air and in moisturized air. Using PAA powder and fluoroplastic as a binder, fully dense cylindrical membranes were formed by cold uniaxial pressing. The structures of the PAA-based membranes were investigated by SEM, EDX, XRD and Raman techniques. STA coupled with in situ thermo-XRD analysis revealed that the obtained membranes corresponded with Sb2O5 3H2O with pyrochlore structure, and that no phase transitions took place up to 330 C. PAA-based membranes possess a high-grain component of conductivity, 5 10 2 S/cm. Grain boundary conductivities of 90PAA and 80PAA membranes increase with relative humidity content and their values change non-linearly in the range 25–250 C. | pt |
dc.language.iso | eng | pt |
dc.relation | UIDB/00285/2020 | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject | proton conductivity | pt |
dc.subject | polyantimonic acid | pt |
dc.subject | ion-conductingmembranes | pt |
dc.subject | impedance spectroscopy | pt |
dc.title | Electrochemical Characterization of Novel Polyantimonic-Acid-Based Proton Conductors for Low- and Intermediate-Temperature Fuel Cells | pt |
dc.type | article | - |
degois.publication.firstPage | 11877 | pt |
degois.publication.issue | 24 | pt |
degois.publication.title | Applied Sciences (Switzerland) | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.3390/app112411877 | pt |
degois.publication.volume | 11 | pt |
dc.date.embargo | 2021-01-01 | * |
uc.date.periodoEmbargo | 0 | pt |
item.fulltext | Com Texto completo | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.project.grantno | Centre for Mechanical Enginnering, Materials and Processes | - |
crisitem.author.researchunit | CEMMPRE - Centre for Mechanical Engineering, Materials and Processes | - |
crisitem.author.orcid | 0000-0001-5539-9766 | - |
Appears in Collections: | I&D CEMMPRE - Artigos em Revistas Internacionais |
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File | Description | Size | Format | |
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Electrochemical-characterization-of-novel-polyantimonicacidbased-proton-conductors-for-lowand-intermediatetemperature-fuel-cellsApplied-Sciences-Switzerland.pdf | 6.37 MB | Adobe PDF | View/Open |
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This item is licensed under a Creative Commons License