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dc.contributor.authorHan, Da Binko
dc.contributor.authorHossain, Syed Imdadulko
dc.contributor.authorSon, Byungrakko
dc.contributor.authorLee, Dong-Hako
dc.contributor.authorShanmugam, Sangarajuko
dc.date.accessioned2019-10-21T12:42:47Z-
dc.date.available2019-10-21T12:42:47Z-
dc.date.created2019-10-15-
dc.date.created2019-10-15-
dc.date.created2019-10-15-
dc.date.created2019-10-15-
dc.date.issued2019-10-
dc.identifier.citationACS Sustainable Chemistry and Engineering, v.7, no.19, pp.16889 - 16899-
dc.identifier.issn2168-0485-
dc.identifier.urihttp://hdl.handle.net/20.500.11750/10812-
dc.description.abstractA 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.languageEnglish-
dc.publisherAmerican Chemical Society-
dc.titlePyrochlore Zirconium Gadolinium Oxide Nanorods Composite Membrane for Suppressing the Formation of Free Radical in PEM Fuel Cell Operating Under Dry Condition-
dc.typeArticle-
dc.identifier.doi10.1021/acssuschemeng.9b04492-
dc.identifier.wosid000489986400115-
dc.identifier.scopusid2-s2.0-85072882692-
dc.type.localArticle(Overseas)-
dc.type.rimsART-
dc.description.journalClass1-
dc.contributor.localauthorSon, Byungrak-
dc.contributor.localauthorLee, Dong-Ha-
dc.contributor.localauthorShanmugam, Sangaraju-
dc.identifier.citationVolume7-
dc.identifier.citationNumber19-
dc.identifier.citationStartPage16889-
dc.identifier.citationEndPage16899-
dc.identifier.citationTitleACS Sustainable Chemistry and Engineering-
dc.type.journalArticleArticle-
dc.description.isOpenAccessN-
dc.subject.keywordAuthorProton exchange membrane fuel cells-
dc.subject.keywordAuthorNafion composite membrane-
dc.subject.keywordAuthorPyrochlore compound-
dc.subject.keywordAuthorDurability-
dc.subject.keywordAuthorFluoride ion emission-
dc.subject.keywordPlusPROTON-EXCHANGE MEMBRANE-
dc.subject.keywordPlusOXYGEN REDUCTION REACTION-
dc.subject.keywordPlusNAFION MEMBRANES-
dc.subject.keywordPlusLOW HUMIDITY-
dc.subject.keywordPlusTRANSPORT-
dc.subject.keywordPlusDEGRADATION-
dc.subject.keywordPlusNANOPARTICLES-
dc.subject.keywordPlusCONDUCTIVITY-
dc.subject.keywordPlusHYDROGEN-
dc.subject.keywordPlusCEOX/C-


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