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Onion-like graphitic nanoshell structured Fe–N/C nanofibers derived from electrospinning for oxygen reduction reaction in acid media
Institution:1. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China;2. Institute for Applied Materials (IAM), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany;1. School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, PR China;2. Anhui Key Laboratory of Controllable Chemical Reaction and Material Chemical Engineering, Hefei 230009, PR China;1. Istituto di Tecnologie Avanzate per l’Energia, Nicola Giordano, CNR-ITAE, Salita Santa Lucia sopra Contesse, 5, 98126, Messina, Italy;2. Laboratorio de Investigación en Fluidodinámica y Tecnologías de la Combustión, LIFTEC, CSIC-Univ. of Zaragoza, Maria de Luna 10, 50018, Zaragoza, Spain;1. Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Department of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan, PR China;2. School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, PR China
Abstract:Hollow onion-like graphitic nanoshell structured Fe–N/C nanofiber (Fe–N/CNF) catalyst with porous morphology was prepared by heat treating as-spun polyacrylonitrile/ferrous oxalate composite nanofibers in ammonia atmosphere for the first time. These porous electrocatalyst showed both excellent catalytic activity for oxygen reduction reaction (ORR) and much better stability than commercial Pt/C catalyst in acid solution. The Fe–N/CNF catalysts developed here could be easily fabricated on a large scale and show high potential in proton exchange membrane fuel cells (PEMFCs).
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