School of Electronic Science and Engineering;
and State Key Laboratory of Electronic Thin Films and Integrated Devices;
University of Electronic Science and Technology of China;
Chengdu 610054;
PR China;
School of Physics;
University of Electronic Science and Technology of China;
Chengdu 611731;
PR China;
School of Science;
and Institute of Oxygen Supply;
Tibet University;
Lhasa 850000;
PR China;
College of Materials Science and Engineering;
Sichuan University;
Chengdu 610065;
PR China;
MoP quantum dots; Graphene; Electrocatalyst; Shuttle effect; Li-S batteries;