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Zhao, Weiyue; Ye, Yuekun; Jiang, Wenjie; Li, Jing; Tang, Haibo; Hu, Jinsong; Du, Li; Cui, Zhiming; Liao, Shijun
Journal of materials chemistry. A, Materials for energy and sustainability, 01/2020, Letnik: 8, Številka: 31Journal Article
Exploring advanced electrocatalysts for the sluggish oxygen reduction reaction is extremely important for fuel cell commercialization but still remains a great challenge, especially the durability issue that gains increasing attention. Herein, we demonstrate an extremely durable catalyst prototype that combines structurally ordered intermetallic nanoparticles (NPs) with mesoporous carbon. With ZIF-8 derived mesoporous carbon supported Pt 3 Co intermetallic NPs (Pt 3 Co/DMC-F) as an example, we illustrate its synthetic details, electrocatalytic performance and durability enhancement mechanism. The Pt 3 Co/DMC-F catalyst exhibited significant enhancement in activity and durability. More importantly, its extraordinary performance was observed/verified in a H 2 /air PEM single cell test. The confinement of mesoporous carbon not only efficiently controls the particle size of Pt 3 Co and hampers their aggregation during thermal annealing and electrochemical reactions, but also significantly suppresses detachment. Beyond offering an advanced electrocatalyst, this study provides a solution to the durability issue of cathodes that has prevented practical application of proton exchange membrane fuel cells. An effective strategy was demonstrated to develop a highly durable catalyst prototype that combines superfine Pt-based intermetallic nanoparticles with mesoporous carbon.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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