Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Han, Da Bin | ko |
dc.contributor.author | Hossain, Syed Imdadul | ko |
dc.contributor.author | Son, Byungrak | ko |
dc.contributor.author | Lee, Dong-Ha | ko |
dc.contributor.author | Shanmugam, Sangaraju | ko |
dc.date.accessioned | 2019-10-21T12:42:47Z | - |
dc.date.available | 2019-10-21T12:42:47Z | - |
dc.date.created | 2019-10-15 | - |
dc.date.issued | 2019-10 | - |
dc.identifier.citation | ACS Sustainable Chemistry and Engineering, v.7, no.19, pp.16889 - 16899 | - |
dc.identifier.issn | 2168-0485 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/10812 | - |
dc.description.abstract | A proton exchange membrane fuel cell uses perfluorosulfonic acid polymers as a proton exchange membrane but exhibits poor performance and durability under dry operating condition. Herein, we develop a composite membrane by incorporating porous inorganic filler, Zr2Gd2O7, into a perfluorosulfonic acid, Nafion. Zr2Gd2O7 nanorods (ZrGdNR) are synthesized using an electrospinning process and subsequently calcination under air atmosphere at 500 °C. The Nafion-ZrGdNR composite (Nafion-ZrGdNR) and NRE-212 membranes exhibit power densities of 858 and 695 mW cm-2, respectively, at 0.6 V under 100% relative humidity at 80 °C. At 20% relative humidity, the maximum power density of the Nafion-ZrGdNR membrane (448 mW cm-2) is 3.8 times higher than that of a commercial NRE-212 membrane (119 mW cm-2), and moreover, the Nafion-ZrGdNR membrane exhibits a fluoride emission rate of 6.9 × 10-5 ppm h-1 cm-2, which is about 240 times lower that of than the NRE-212 membrane (1670 × 10-5 ppm h-1cm-2) for 120 h of open-circuit voltage testing. The composite membrane shows high proton conductivity, superior oxidative stability, and improved mechanical strength. The outstanding performance and remarkable durability of the Nafion-ZrGdNR membrane are due to its efficient water diffusion and stability against hydroxyl radical attack, resulting in low ohmic resistance and improved membrane degradation. Copyright © 2019 American Chemical Society. | - |
dc.language | English | - |
dc.publisher | American Chemical Society | - |
dc.title | Pyrochlore Zirconium Gadolinium Oxide Nanorods Composite Membrane for Suppressing the Formation of Free Radical in PEM Fuel Cell Operating Under Dry Condition | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acssuschemeng.9b04492 | - |
dc.identifier.wosid | 000489986400115 | - |
dc.identifier.scopusid | 2-s2.0-85072882692 | - |
dc.type.local | Article(Overseas) | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.citationVolume | 7 | - |
dc.identifier.citationNumber | 19 | - |
dc.identifier.citationStartPage | 16889 | - |
dc.identifier.citationEndPage | 16899 | - |
dc.identifier.citationTitle | ACS Sustainable Chemistry and Engineering | - |
dc.type.journalArticle | Article | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordAuthor | Proton exchange membrane fuel cells | - |
dc.subject.keywordAuthor | Nafion composite membrane | - |
dc.subject.keywordAuthor | Pyrochlore compound | - |
dc.subject.keywordAuthor | Durability | - |
dc.subject.keywordAuthor | Fluoride ion emission | - |
dc.subject.keywordPlus | PROTON-EXCHANGE MEMBRANE | - |
dc.subject.keywordPlus | OXYGEN REDUCTION REACTION | - |
dc.subject.keywordPlus | NAFION MEMBRANES | - |
dc.subject.keywordPlus | LOW HUMIDITY | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | CONDUCTIVITY | - |
dc.subject.keywordPlus | HYDROGEN | - |
dc.subject.keywordPlus | CEOX/C | - |
dc.contributor.affiliatedAuthor | Son, Byungrak | - |
dc.contributor.affiliatedAuthor | Lee, Dong-Ha | - |
dc.contributor.affiliatedAuthor | Shanmugam, Sangaraju | - |
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