Junhui Zhao, Tao Wu, Qishan He, Huiyuan Fang, Mingshuang Liu, Yumin Liu, Zijian Zhou, Junyu Zhang, Weihua Yang
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Electrochemically assisted polymerization synthesis of ZIF-derived Fe-N/C with high oxygen reduction reaction activity
The zeolitic imidazolate framework-8 (ZIF-8)-derived Fe-N/C catalysts show excellent oxygen reduction reactions (ORR) performance, but the harsh synthesis conditions and low yields have greatly limited their commercialization. Herein, we report an electrochemical-assisted polymerization method to produce a Fe-N/C structure (EC-Fe-N/C) with a high surface area (954.583 m2 g−1), high dispersion of Fe (2.2 wt %), and abundant N (2.05 wt %). The hierarchical structure exhibits excellent ORR activity (half-wave potential 0.88 V, in alkaline media) and outstanding zinc-air battery performance (energy density 821.3 mAh g−1 Zn, specific capacity 1017.1 Wh kg−1 Zn). This work may provide a simple and effective strategy to rationally design the Fe-N/C porous structure for highly efficient ORR activity.
期刊介绍：
The Bulletin of the Chemical Society of Japan (BCSJ) is devoted to the publication of scientific research papers in the fields of Theoretical and Physical Chemistry, Analytical and Inorganic Chemistry, Organic and Biological Chemistry, and Applied and Materials Chemistry. BCSJ appears as a monthly journal online and in advance with three kinds of papers (Accounts, Articles, and Short Articles) describing original research. The purpose of BCSJ is to select and publish the most important papers with the broadest significance to the chemistry community in general. The Chemical Society of Japan hopes all visitors will notice the usefulness of our journal and the abundance of topics, and welcomes more submissions from scientists all over the world.
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