MOF‐derived nitrogen‐doped iron–nickel oxide carbon nanotubes as efficient oxygen electrocatalyst for long‐life rechargeable zinc–air batteries
Tao ZhaoSchool of Materials Science and Engineering Institute of Functional Porous Materials Zhejiang Sci‐Tech University 310018 Hangzhou ChinaYuhang WuSchool of Materials Science and Engineering Institute of Functional Porous Materials Zhejiang Sci‐Tech University 310018 Hangzhou ChinaZhirong SongSchool of Materials Science and Engineering Institute of Functional Porous Materials Zhejiang Sci‐Tech University 310018 Hangzhou ChinaXue WangSchool of Materials Science and Engineering Institute of Functional Porous Materials Zhejiang Sci‐Tech University 310018 Hangzhou ChinaRuilian YinCollege of Materials Science and Engineering Pinghu Institute of Advanced Materials Zhejiang University of Technology 310014 Hangzhou ChinaHui XuInstitute of Optoelectronic Materials and Devices China Jiliang University 310018 Hangzhou ChinaHui CuiDepartment of Chemistry and International Institute for Nanotechnology (IIN) Northwestern University 60208 Evanston IL USAXiehong CaoCollege of Materials Science and Engineering Pinghu Institute of Advanced Materials Zhejiang University of Technology 310014 Hangzhou ChinaJunkuo GaoSchool of Materials Science and Engineering Institute of Functional Porous Materials Zhejiang Sci‐Tech University 310018 Hangzhou China
2023en
ABI
Annotatsiya
摘要 具有高活性的电催化剂对于高能量密度的锌‐空气电池至关重要。然而，电催化剂中析氧反应（OER）和氧还原反应（ORR）的缓慢动力学阻碍了锌‐空气电池的发展。本文报道了一类通过简单热解策略制备的MOF衍生氮掺杂双金属氧化物封装的碳纳米管材料（FeNiO@NCNT）。FeNiO@NCNT对OER和ORR都表现出高催化活性。特别是，FeNiO@NCNT中的晶格氧和OH ‐ 为OER提供了更多的活性位点（金属活性位点除外），使FeNiO@NCNT具有相比其他催化剂更优异的OER性能（E j＝10 ＝ 205 mV）。作为OER和ORR双功能催化剂，基于FeNiO@NCNT的可充电锌空气电池表现出124.29 mW·cm −2 的高放电功率密度，以及低的充放电极化和在20 mA·cm −2 下440 h的优异循环稳定性。这项工作表明FeNiO@NCNT可作为在各种集成能源系统中实际应用的有前途的潜在催化剂。
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