Highly Dispersed CeO<sub>x</sub> Hybrid Nanoparticles for Perfluorinated Sulfonic Acid Ionomer–Poly(tetrafluoethylene) Reinforced Membranes with Improved Service Life
CeO<sub>x</sub> hybrid nanoparticles were synthesized and evaluated for use as radical scavengers, in place of commercially available Ce(NO<sub>3</sub>)<sub>3</sub> and CeO<sub>2</sub> nanoparticles, to avoid deterioration of the initial electrochemica...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/11/2/143 |
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| author | Juhee Ahn Mobina Irshad Ali Jun Hyun Lim Yejun Park In Kee Park Denis Duchesne Lisa Chen Juyoung Kim Chang Hyun Lee |
| author_facet | Juhee Ahn Mobina Irshad Ali Jun Hyun Lim Yejun Park In Kee Park Denis Duchesne Lisa Chen Juyoung Kim Chang Hyun Lee |
| author_sort | Juhee Ahn |
| collection | DOAJ |
| description | CeO<sub>x</sub> hybrid nanoparticles were synthesized and evaluated for use as radical scavengers, in place of commercially available Ce(NO<sub>3</sub>)<sub>3</sub> and CeO<sub>2</sub> nanoparticles, to avoid deterioration of the initial electrochemical performance and/or spontaneous aggregation/precipitation issues encountered in polymer electrolyte membranes. When CeO<sub>x</sub> hybrid nanoparticles were used for membrane formation, the resulting membranes exhibited improved proton conductivity (improvement level = 2–15% at 30–90 °C), and thereby electrochemical single cell performance, because the –OH groups on the hybrid nanoparticles acted as proton conductors. In spite of a small amount (i.e., 1.7 mg/cm<sup>3</sup>) of introduction, their antioxidant effect was sufficient enough to alleviate the radical-induced decomposition of perfluorinated sulfonic acid ionomer under a Fenton test condition and to extend the chemical durability of the resulting reinforced membranes under fuel cell operating conditions. |
| first_indexed | 2024-03-09T00:46:16Z |
| format | Article |
| id | doaj.art-0294eeb3f2024494944f7563e12fd003 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-09T00:46:16Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-0294eeb3f2024494944f7563e12fd0032023-12-11T17:29:44ZengMDPI AGMembranes2077-03752021-02-0111214310.3390/membranes11020143Highly Dispersed CeO<sub>x</sub> Hybrid Nanoparticles for Perfluorinated Sulfonic Acid Ionomer–Poly(tetrafluoethylene) Reinforced Membranes with Improved Service LifeJuhee Ahn0Mobina Irshad Ali1Jun Hyun Lim2Yejun Park3In Kee Park4Denis Duchesne5Lisa Chen6Juyoung Kim7Chang Hyun Lee8Department of Energy Engineering, Dankook University, Cheonan 31116, KoreaDepartment of Advanced Materials Engineering, Kangwon University, Samcheok 25913, KoreaDepartment of Energy Engineering, Dankook University, Cheonan 31116, KoreaDepartment of Energy Engineering, Dankook University, Cheonan 31116, KoreaDepartment of Energy Engineering, Dankook University, Cheonan 31116, Korea3M Advanced Materials Division, 3M Center, St. Paul, MN 55144, USA3M Advanced Materials Division, 3M Center, St. Paul, MN 55144, USADepartment of Advanced Materials Engineering, Kangwon University, Samcheok 25913, KoreaDepartment of Energy Engineering, Dankook University, Cheonan 31116, KoreaCeO<sub>x</sub> hybrid nanoparticles were synthesized and evaluated for use as radical scavengers, in place of commercially available Ce(NO<sub>3</sub>)<sub>3</sub> and CeO<sub>2</sub> nanoparticles, to avoid deterioration of the initial electrochemical performance and/or spontaneous aggregation/precipitation issues encountered in polymer electrolyte membranes. When CeO<sub>x</sub> hybrid nanoparticles were used for membrane formation, the resulting membranes exhibited improved proton conductivity (improvement level = 2–15% at 30–90 °C), and thereby electrochemical single cell performance, because the –OH groups on the hybrid nanoparticles acted as proton conductors. In spite of a small amount (i.e., 1.7 mg/cm<sup>3</sup>) of introduction, their antioxidant effect was sufficient enough to alleviate the radical-induced decomposition of perfluorinated sulfonic acid ionomer under a Fenton test condition and to extend the chemical durability of the resulting reinforced membranes under fuel cell operating conditions.https://www.mdpi.com/2077-0375/11/2/143radical scavengerservice lifepolymer electrolyte membrane |
| spellingShingle | Juhee Ahn Mobina Irshad Ali Jun Hyun Lim Yejun Park In Kee Park Denis Duchesne Lisa Chen Juyoung Kim Chang Hyun Lee Highly Dispersed CeO<sub>x</sub> Hybrid Nanoparticles for Perfluorinated Sulfonic Acid Ionomer–Poly(tetrafluoethylene) Reinforced Membranes with Improved Service Life Membranes radical scavenger service life polymer electrolyte membrane |
| title | Highly Dispersed CeO<sub>x</sub> Hybrid Nanoparticles for Perfluorinated Sulfonic Acid Ionomer–Poly(tetrafluoethylene) Reinforced Membranes with Improved Service Life |
| title_full | Highly Dispersed CeO<sub>x</sub> Hybrid Nanoparticles for Perfluorinated Sulfonic Acid Ionomer–Poly(tetrafluoethylene) Reinforced Membranes with Improved Service Life |
| title_fullStr | Highly Dispersed CeO<sub>x</sub> Hybrid Nanoparticles for Perfluorinated Sulfonic Acid Ionomer–Poly(tetrafluoethylene) Reinforced Membranes with Improved Service Life |
| title_full_unstemmed | Highly Dispersed CeO<sub>x</sub> Hybrid Nanoparticles for Perfluorinated Sulfonic Acid Ionomer–Poly(tetrafluoethylene) Reinforced Membranes with Improved Service Life |
| title_short | Highly Dispersed CeO<sub>x</sub> Hybrid Nanoparticles for Perfluorinated Sulfonic Acid Ionomer–Poly(tetrafluoethylene) Reinforced Membranes with Improved Service Life |
| title_sort | highly dispersed ceo sub x sub hybrid nanoparticles for perfluorinated sulfonic acid ionomer poly tetrafluoethylene reinforced membranes with improved service life |
| topic | radical scavenger service life polymer electrolyte membrane |
| url | https://www.mdpi.com/2077-0375/11/2/143 |
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