State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 People’s Republic of China;
Interdisciplinary Nanoscience Center(INANO) Sino‑Danish Center for Education and Research(SDC) Aarhus University 8000 Aarhus C Denmark;
Shandong University of Science and Technology Electrical Engineering and Automation Tsingtao 266590 People’s Republic of China;
State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 People’s Republic of China;
State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 People’s Republic of ChinaDepartment of Chemical Engineering Loughborough University Loughborough Leicestershire LE113TU UK;
State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 People’s Republic of China;
Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 People’s Republic of China;
Department of Chemical Engineering Loughborough University Loughborough Leicestershire LE113TU UK;
Interdisciplinary Nanoscience Center(INANO) Sino‑Danish Center for Education and Research(SDC) Aarhus University 8000 Aarhus C Denmark;
Shandong University of Science and Technology Electrical Engineering and Automation Tsingtao 266590 People’s Republic of China;
State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 People’s Republic of China;
State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 People’s Republic of China;
Atomic dispersion; Iron–nitrogen moiety; Electronic structure; Sulfur doping; Oxygen reduction;