College of Materials Science and Engineering Fuzhou University Fuzhou 350108 China;
College of Materials Science and Engineering Fuzhou University Fuzhou 350108 China;
College of Materials Science and Engineering Fuzhou University Fuzhou 350108 China;
College of Materials Science and Engineering Fuzhou University Fuzhou 350108 China;
College of Materials Science and Engineering Fuzhou University Fuzhou 350108 China;
College of Materials Science and Engineering Fuzhou University Fuzhou 350108 China;
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China;
Department of Mechanical and Materials Engineering The University of Western Ontario London ON N6A 5B9 Canada;
oxygen reduction reaction; ultrafine CoFe alloy; hollow porous carbons; zeolitic imidazolate framework-67; Zn-air battery;