State Key Laboratory of Advanced Technology for Materials Synthesis and Processing;
Wuhan University of Technology;
Wuhan;
430070;
China;
Nanomaterials Centre;
School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology;
The University of Queensland;
St Lucia;
QLD;
4072;
Australia;
Shenzhen Power Supply Col.Ltd.;
Shenzhen City;
China;
State Key Laboratory of Advanced Electromagnetic Engineering and Technology;
School of Electrical and Electronic Engineering;
Huazhong University of Science and Technology;
Wuhan;
430074;
China;
John A.Paulson School of Engineering and Applied Sciences;
Harvard University;
Cambridge;
MA;
02138;
United States;
MOF shell; Nitrogen-doped carbon; Hollow framework; Oxygen reduction; Active nitrogen sites;