From Metal–Organic Frameworks to Single‐Atom Fe Implanted N‐doped Porous Carbons: Efficient Oxygen Reduction in Both Alkaline and Acidic Media |
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| Authors: | Long Jiao Gang Wan Rui Zhang Dr. Hua Zhou Prof. Dr. Shu‐Hong Yu Prof. Dr. Hai‐Long Jiang |
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| Affiliation: | 1. http://staff.ustc.edu.cn/～jianglab/;2. Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, P. R. China;3. Materials Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA;4. University of Chinese Academy of Sciences, Beijing, P. R. China;5. X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA |
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| Abstract: | It remains highly desired but a great challenge to achieve atomically dispersed metals in high loadings for efficient catalysis. Now porphyrinic metal–organic frameworks (MOFs) have been synthesized based on a novel mixed‐ligand strategy to afford high‐content (1.76 wt %) single‐atom (SA) iron‐implanted N‐doped porous carbon (FeSA‐N‐C) via pyrolysis. Thanks to the single‐atom Fe sites, hierarchical pores, oriented mesochannels and high conductivity, the optimized FeSA‐N‐C exhibits excellent oxygen reduction activity and stability, surpassing almost all non‐noble‐metal catalysts and state‐of‐the‐art Pt/C, in both alkaline and more challenging acidic media. More far‐reaching, this MOF‐based mixed‐ligand strategy opens a novel avenue to the precise fabrication of efficient single‐atom catalysts. |
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| Keywords: | metal– organic frameworks oxygen reduction reaction porous carbon single-atom catalysts |
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