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Controllable synthesis and enhanced electrocatalysis of iron-based catalysts derived from electrospun nanofibers
Xingxu Yan1, Lin Gan, Yuh-Chen Lin
1Beijing National Center for Electron Microscopy, Key Laboratory of Advanced Materials (MOE), The State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
Abstract:
Electrospun carbon nanofibers containing iron and nitrogen are designed to catalyze the oxygen reduction reaction instead of Pt-based catalysts. Their surface morphology is modified finely by using ultralow oxygen flow, and their onset and half-wave potentials are improved to 0.88 V and 0.76 V versus the reversible hydrogen electrode, respectively, approaching those of Pt-based catalysts.
